extrapolate

C2+ Topic:Mind & Cognition

US /ɪkˈstræpəˌleɪt/ UK /ɪkˈstræpəleɪt/ See IPA manual

Meanings

1

verb
to infer or estimate beyond known data by extending a trend

From two months of sales they tried to extrapolate the year's total.

Thesaurus

Synonyms

1 verb · to infer or estimate beyond... infer extend project deduce estimate generalize conjecture

Opposites

interpolate observe measure

Word family

Derived forms extrapolationextrapolator

Related forms interpolate

Etymology

A 19th-century coinage modeled on interpolate, from extra- ('outside, beyond') + the -polate of interpolate (from Latin interpolare, 'to refurbish, alter').

extra Latin interpolare Latin

View etymology graph ->

Topics

Mind & Cognition Word Formation & Derivatives

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# extrapolate

**Type:** Word
**Level:** C2+
**Part of speech:** verb
**IPA (US):** /ɪkˈstræpəˌleɪt/
**IPA (UK):** /ɪkˈstræpəleɪt/

## Meanings
1. to infer or estimate beyond known data by extending a trend

## Examples
- From two months of sales they tried to extrapolate the year's total.

## Synonyms
- infer
- extend
- project
- deduce
- estimate
- generalize
- conjecture

## Antonyms
- interpolate
- observe
- measure

## Derived Forms
- extrapolation
- extrapolator

## Related Forms
- interpolate

## Roots and Affixes
- Root: extra
- Root: interpolare

## Etymology
A 19th-century coinage modeled on interpolate, from extra- ('outside, beyond') + the -polate of interpolate (from Latin interpolare, 'to refurbish, alter').

## AI Etymology
Extrapolate is a 19th-century coinage modeled on interpolate, from extra- ('outside, beyond') + the -polate of interpolate (from Latin interpolare, 'to refurbish, alter'). Morphologically, the form is compositional: extra- marks part of the visible structure, while the remaining element supplies the lexical base. In present use, it is used as a verb meaning "to infer or estimate beyond known data by extending a trend", so the historical material remains connected with the current sense rather than standing as bare ancestry. The wider English family includes derivatives such as extrapolation and extrapolator and related forms such as interpolate, showing how the same historical material continues to organize neighboring vocabulary. The named historical forms include Latin extra and Latin interpolare, keeping the history tied to concrete forms rather than a loose resemblance.

## Topics
- Mind & Cognition
- Word Formation & Derivatives

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extrapolate

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