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Prognosticate vs Extrapolate - What's the difference?

prognosticate | extrapolate | Related terms |

Prognosticate is a related term of extrapolate.


In lang=en terms the difference between prognosticate and extrapolate

is that prognosticate is to presage, betoken while extrapolate is to infer by extending known information.

As verbs the difference between prognosticate and extrapolate

is that prognosticate is to predict or forecast, especially through the application of skill while extrapolate is to infer by extending known information.

prognosticate

English

Verb

(prognosticat)
  • To predict or forecast, especially through the application of skill.
  • Examining the tea-leaves, she prognosticated dark days ahead.
  • To presage, betoken.
  • The bluebells may prognosticate an early spring this year.

    Quotations

    {{timeline, 1500s=1598, 1800s=1847, 1900s=1915}} * 1598 — *: But from thine eyes my knowledge I derive,
    And constant stars in them I read such art
    As 'Truth and beauty shall together thrive,
    If from thyself, to store thou wouldst convert';
    Or else of thee this I prognosticate :
    'Thy end is truth's and beauty's doom and date.' * *: ...to-morrow I intend lengthening the night till afternoon. I prognosticate for myself an obstinate cold, at least. * 1915 — , Voyage Out ch. 2 *: All old people and many sick people were drawn, were it only for a foot or two, into the open air, and prognosticated pleasant things about the course of the world.

    Synonyms

    * presage, prophesy, foretell

    extrapolate

    English

    Verb

    (extrapolat)
  • To infer by extending known information.
  • *
  • With fresh material, taxonomic conclusions are leavened by recognition that the material examined reflects the site it occupied; a herbarium packet gives one only a small fraction of the data desirable for sound conclusions. Herbarium material does not, indeed, allow one to extrapolate safely: what you see is what you get
  • (mathematics) To estimate the value of a variable outside a known range from values within that range by assuming that the estimated value follows logically from the known ones
  • Antonyms

    * (mathematics) interpolate