Etymological root
*dʰeh₁-
Proto-Indo-European
Words from this root(79)
do
A1
/də/
To carry out or perform an action or task.
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family
A1
/ˈfæ.m(ə )li/
A group of people who are related, especially parents and their children.
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fact
A2
/fækt/
A piece of information that is true and can be proven.
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fan
A2
/fæn/
Someone who admires and strongly supports a person, team, or activity.
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familiar
A2
/fəˈmɪl.jɚ/
Easy to recognize because you have seen, heard, or known it before.
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affair
A2
/əˈfɛɹ/
A secret romantic or sexual relationship, usually involving someone who is married.
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effect
A2
/əˈfɛkt/
A change or result produced by an action or cause.
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wood
A2
/wʊd/
The hard material that trees are made of, used for building and making things.
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factory
A2
/ˈfæk.tɚ.i/
A building where goods are made, usually using machines.
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theme
B1
/θiːm/
The main subject or idea of a book, film, talk, or piece of art.
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sacrifice
C1
/ˈsæk.ɹɪˌfaɪs/
The act of giving up something valuable for the sake of something more important.
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fashion
A2
/ˈfæʃən/
The popular styles of clothing at a particular time, and the industry that creates them.
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festival
A1
/ˈfɛstəv(ə)l/
A series of special events celebrating something, such as music, film, or culture.
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benefit
B1
/ˈbɛn.ə.fɪt/
A good or helpful effect that something has; an advantage.
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facility
B1
/fəˈsɪlɪti/
A building or place provided for a particular purpose or service.
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effective
B1
/ɪˈfɛktɪv/
Working well and producing the result you want.
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feast
B1
/fiːst/
A large, special meal, often to celebrate something.
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significant
A2
/sɪɡˈnɪf.ə.kənt/
Large or important enough to have a noticeable effect.
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infection
B1
/ɪnˈfɛkʃən/
An illness caused by harmful germs entering the body.
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affection
B1
/əˈfɛk.ʃən/
A gentle feeling of fondness, liking, or love for someone.
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deed
B1
/diːd/
Something that is done; an action.
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factor
A2
/ˈfæk.tɚ/
One of the things that influences or helps cause a result.
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custom
A2
/ˈkʌstəm/
A traditional way of behaving or doing something that is common to a group or society.
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feature
A2
/ˈfi.t͡ʃɚ/
An important or noticeable part or quality of something.
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divide
A2
/dɪˈvaɪd/
To separate something into two or more parts.
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efficient
B1
/ɪˈfɪʃənt/
Working well without wasting time, effort, or money.
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artificial
A2
/ˌɑːr.təˈfɪʃ.l̩/
Made by people rather than occurring in nature.
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justify
B2
/ˈd͡ʒʌstɪfaɪ/
To give a good reason for something so that it seems acceptable.
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sufficient
B1
/səˈfɪʃənt/
As much as is needed; enough.
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doom
B2
/duːm/
A terrible fate, especially death or destruction, that seems impossible to avoid.
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thesis
B2
/ˈθisɪs/
A long piece of writing based on research, especially for a university degree.
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significance
B1
/səgˈnɪfɪkəns/
The importance or value of something.
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synthetic
C1
/sɪnˈθɛtɪk/
Made artificially by chemical processes rather than coming from nature.
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ethical
C1
/ˈɛθɪkəl/
Morally right; following accepted principles of good behaviour.
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hypothesis
C2
[haɪˈpʰɑθəsɪs]
An idea put forward to explain something, which can then be tested.
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suffice
C1
/ˈsʌ.fɪs/
to be enough for a particular purpose
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forfeit
C1
/ˈfɔɹ.fɪt/
To lose or give up something as a penalty for a mistake or wrongdoing.
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artifact
C2
/ˈɑɹtɪfækt/
An object made by people, especially an old or historically interesting one
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ethnic
B2
/ˈɛθ.nɪk/
Relating to a group of people who share the same race, culture, language, or national background.
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festive
B1
/ˈfɛstɪv/
Cheerful and full of fun, as at a holiday or celebration.
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prefect
B2
/ˈpɹiːfɛkt/
An older school pupil given authority over other students.
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beneficial
B2
/ˌbɛnəˈfɪʃəl/
Helpful and good for someone or something.
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faction
C1
/ˈfæk.ʃən/
A small group within a larger organization whose opinions differ from the rest.
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deficit
C1
/ˈdɛfəsɪt/
The amount by which spending is greater than the money coming in.
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justification
C1
/ˌdʒʌstəfəˈkeɪʃən/
A good reason or explanation that makes an action or belief seem acceptable.
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modify
B1
/ˈmɑ.dɪˌfaɪ/
To change something slightly, especially to improve it.
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ethic
B2
/ˈɛθ.ɪk/
A set of beliefs about what is right and wrong that guides a person or group.
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deem
B2
/dim/
To consider or judge something to be a certain way.
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simplify
B1
/ˈsɪmplɪfaɪ/
To make something easier to do or understand.
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modification
B2
/ˌmɑdɪfɪˈkeɪʃən/
A change made to something to improve it or make it more suitable.
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signify
B2
/ˈsɪɡnɪfaɪ/
To mean or be a sign of something.
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certify
B2
/ˈsɝ.tɪ.faɪ/
To state officially that something has met a required standard.
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deficient
C2
/dɪˈfɪʃənt/
Not having enough of something that is needed.
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edifice
C2
/ˈɛdəfəs/
A building, especially a large and impressive one.
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ethos
C2
/ˈiθɑs/
The set of values, beliefs, and character that define a person, group, or culture.
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artifice
C2
/ˈɑː(ɹ)tɪfɪs/
Clever but dishonest behaviour used to trick or deceive someone.
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condiment
C2
/ˈkɑn.də.mənt/
a preparation (a sauce or relish or spice) to enhance flavor or enjoyment
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liquefy
C2
/ˈlɪ.kwɪ.faɪ/
make (a solid substance) liquid, as by heating
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antithesis
C2
/ænˈtɪθ.ɪ.sɪs/
The exact opposite of something.
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edification
C2
/ˌɛdɪfɪˈkeɪʃən/
The act of improving someone morally, intellectually, or spiritually.
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confection
C2
/kənˈfɛkʃən/
A sweet food such as a cake, candy, or pastry, often elaborately decorated.
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simplification
B2
/ˌsɪm.plə.fəˈkeɪ.ʃən/
The act of making something easier to do or understand.
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edify
C2
/ˈɛdɪfaɪ/
To improve someone morally or intellectually through teaching.
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doer
C2+
/ˈduər/
a person who acts rather than merely talks or thinks
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doings
C2+
/ˈduɪŋz/
activities or events, especially of a notable or social kind
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feminine
C2+
/ˈfɛmənɪn/
having qualities traditionally associated with women
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abscond
C2+
/əbˈskɑnd/
to depart secretly and hurriedly, especially to avoid arrest or with stolen funds
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discomfit
C2+
/dɪsˈkʌmfɪt/
to make uneasy or embarrassed; to thwart or defeat
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doomsman
C2+
/ˈdumzmən/
archaic term for a judge or one who pronounces sentence
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fordo
C2+
/fɔrˈdu/
to destroy, undo, or exhaust utterly
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artefact
C2+
/ˈɑrtəˌfækt/
an object made by a human, especially one of historical interest
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deface
C2+
/dɪˈfeɪs/
to spoil the surface or appearance of
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defeature
C2+
/dɪˈfitʃər/
defeat or undoing; disfigurement (archaic)
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difficultness
C2+
/ˈdɪfɪkəltnɪs/
the quality of being difficult or troublesome
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disaffect
C2+
/ˌdɪsəˈfɛkt/
to make discontented or disloyal
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doable
C2+
/ˈduəbəl/
able to be done; feasible
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doomsday
C2+
/ˈdumzdeɪ/
the day of the Last Judgment; a time of catastrophe
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indeedy
C2+
/ɪnˈdidi/
indeed (a colloquial, emphatic, often jocular intensifier)
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manufactory
C2+
/ˌmænjəˈfæktəri/
a factory; an archaic term for a place where goods are made
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