deteriorate

[dih-teer-ee-uh-reyt]
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verb (used with or without object), de·te·ri·o·rat·ed, de·te·ri·o·rat·ing.

to make or become worse or inferior in character, quality, value, etc.
to disintegrate or wear away.

Origin of deteriorate

1565–75; < Late Latin dēteriōrātus made worse (past participle of dēteriōrāre), equivalent to Latin dēterior worse ( from + -ter- formative in adjectives of spatial orientation (cf. exterior, interior) + -ior comparative suffix) + -ātus -ate1
Related formsde·te·ri·o·ra·tive, adjectiveun·de·te·ri·o·rat·ed, adjectiveun·de·te·ri·o·rat·ing, adjectiveun·de·te·ri·o·ra·tive, adjective

Synonyms for deteriorate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for deteriorative

deteriorate

verb

to make or become worse or lower in quality, value, character, etc; depreciate
(intr) to wear away or disintegrate
Derived Formsdeterioration, noundeteriorative, adjective

Word Origin for deteriorate

C16: from Late Latin dēteriōrāre, from Latin dēterior worse
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for deteriorative

deteriorate

v.

1640s (as a past participle adjective, 1570s), from Late Latin deterioratus, past participle of deteriorare "get worse, make worse," from Latin deterior "worse, lower, inferior, meaner," contrastive of *deter "bad, lower," from PIE *de-tero-, from demonstrative stem *de- (see de). Originally transitive in English; intransitive sense is from 1758. Related: Deteriorated; deteriorating.

Online Etymology Dictionary, © 2010 Douglas Harper

deteriorative in Medicine

deteriorate

[dĭ-tîrē-ə-rāt′]

v.

To grow worse in function or condition.
To weaken or disintegrate.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.