appendix

C2+ Topic:The Human Body

US /əˈpɛndɪks/ UK /əˈpɛndɪks/ See IPA manual

Meanings

1

noun
a supplementary section at the end of a book, or a small organ off the intestine

Full data tables are listed in the appendix at the back of the report.

Thesaurus

Synonyms

1 noun · a supplementary section at... supplement addendum addition annex appendage

Word family

Derived forms appendicealappendicitis

Related forms append appendageappendicular

Simplified etymology

Appendix entered English directly from Latin in the mid-16th century and is based on appendere, “to hang on.” It was first used for supplementary matter attached to the end of a book or document; the anatomical sense appeared in the early 17th century.

Etymology

From Latin appendix ('an addition, appendage'), from appendere ('to hang upon'), from ad- ('to') + pendere ('to hang').

appendix Latin pendere Latin

View etymology graph ->

Topics

The Human Body

External links

# appendix

**Type:** Word
**Level:** C2+
**Part of speech:** noun
**IPA (US):** /əˈpɛndɪks/
**IPA (UK):** /əˈpɛndɪks/

## Meanings
1. a supplementary section at the end of a book, or a small organ off the intestine

## Examples
- Full data tables are listed in the appendix at the back of the report.

## Synonyms
- supplement
- addendum
- addition
- annex
- appendage

## Derived Forms
- appendiceal
- appendicitis

## Related Forms
- append
- appendage
- appendicular

## Roots and Affixes
- Root: appendix
- Root: pendere

## Etymology
From Latin appendix ('an addition, appendage'), from appendere ('to hang upon'), from ad- ('to') + pendere ('to hang').

## AI Etymology
appendix comes from Latin appendix ('an addition, appendage'), from appendere ('to hang upon'), from ad- ('to') + pendere ('to hang'). Morphologically, the word is transparent as a compound: its parts remain visible in the modern spelling, while the older history of those parts supplies the deeper ancestry. In modern use, the noun sense is "a supplementary section at the end of a book, or a small organ off the intestine", which keeps the etymology connected to the word's present dictionary value rather than treating it as a merely historical label. The wider word family includes related English forms such as append, appendage, appendicular and derivatives such as appendiceal, appendicitis, showing how the same base continues to support neighboring English vocabulary. The principal historical forms in the chain include Latin appendix, Latin pendere, which anchor the explanation in named linguistic material.

## Topics
- The Human Body

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