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interpolate

[in-tur-puh-leyt] /ɪnˈtɜr pəˌleɪt/
verb (used with object), interpolated, interpolating.
1.
to introduce (something additional or extraneous) between other things or parts; interject; interpose; intercalate.
2.
Mathematics. to insert, estimate, or find an intermediate term in (a sequence).
3.
to alter (a text) by the insertion of new matter, especially deceptively or without authorization.
4.
to insert (new or spurious matter) in this manner.
verb (used without object), interpolated, interpolating.
5.
to make an interpolation.
Origin
1605-1615
1605-15; < Latin interpolātus past participle of interpolāre to make new, refurbish, touch up, equivalent to inter- inter- + -polā- verb stem (akin to polīre to polish) + -tus past participle suffix
Related forms
interpolable
[in-tur-puh-luh-buh l] /ɪnˈtɜr pə lə bəl/ (Show IPA),
adjective
interpolater, interpolator, noun
interpolatory
[in-tur-puh-luh-tawr-ee, -tohr-ee] /ɪnˈtɜr pə ləˌtɔr i, -ˌtoʊr i/ (Show IPA),
interpolative, adjective
interpolatively, adverb
noninterpolating, adjective
noninterpolative, adjective
uninterpolated, adjective
uninterpolative, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for interpolater

interpolate

/ɪnˈtɜːpəˌleɪt/
verb
1.
to insert or introduce (a comment, passage, etc) into (a conversation, text, etc)
2.
to falsify or alter (a text, manuscript, etc) by the later addition of (material, esp spurious or valueless passages)
3.
(intransitive) to make additions, interruptions, or insertions
4.
(maths) to estimate (a value of a function) between the values already known or determined Compare extrapolate (sense 1)
Derived Forms
interpolater, interpolator, noun
interpolative, adjective
Word Origin
C17: from Latin interpolāre to give a new appearance to, from inter- + polīre to polish
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for interpolater

interpolate

v.

1610s, "to alter or enlarge (a writing) by inserting new material," from Latin interpolatus, past participle of interpolare "alter, freshen up, polish;" of writing, "falsify," from inter- "up" (see inter-) + polare, related to polire "to smoothe, polish." Sense evolved in Latin from "refurbish," to "alter appearance of," to "falsify (especially by adding new material)." Middle English had interpolen (early 15c.) in a similar sense. Related: Interpolated; interpolating.

Online Etymology Dictionary, © 2010 Douglas Harper
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