LATIN DICTIONARYLexicon Latīnum
English → Latin

“decline” in Latin

The English word decline itself goes back to Latin clīnō, through declīnō.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

decline s.
deminutio: imminutio: extenuatio: remissio: mitigatio. [Vid: LESSENING.] To be on the decline [Vid: To DECLINE]. The decline of life, ingravescens aetas (Cic.). In the decline of life, provectiore aetate (in advanced years); vergente jam senecta (Tac.); vergens annis (Tac.): to be in the decline of life, longius aetate provectum esse.
Consumption, tabes. phthisis (φθίσις , Cels., 3, 22): anybody is in a decline, corpus alicujus ad tabem venit; tabes aliquem invadit: to be in a decline, *tabe laborare.
decline
To lean downward, inclinare proclivem or declivem esse: labi; delabi (to sink gradually); inclinari, se inclinare (of the day, fortune, etc.).
To grow weaker, or to decrease, deminui (to be lessened; of bodily strength, etc. ☞ not diminui): minui, imminui (of prices, influence, etc.): remittere (of what is diminished in intensity): defervescere (of heat, desires, passions): senescere (to be weakened by age or time; of strength; also of memory, hope, zeal, etc.): deficere (of strength, etc.): my strength declines, viribus senesco, or deficior; vires extenuantur, deficiunt: the price of corn declines, annona laxat, levatur: the price of anything declines, *pretium mercis imminuitur; *res fit vilior: public credit declines, fides (tota aliqua terra [e.g., Italia, Caes.] est angustior: anybody’s health is declining, aliquis valetudinem amittit: alicujus valetudo decrescit (Plaut., Cure., 2, 1, 4); aliquis tenui, infirma, minus commoda est valetudine: eloquence has declined from its Attic purity of diction, eloquentia omnem illam salubritatem Atticae dictionis quasi sanitatem perdidit (Cic.): the day declines, dies se inclinat or inclinatur, but probably better, *in vespertinum tempus inclinatur (after inclinato in post-meridianum tempus die, Cic.); dies vergit (Suet., Otho, 7; Plin.): anybody’s influence, popularity, etc., declines, alicujus auctoritas, existimatio, etc., imminuta est: the power of the Athenians declines, opes Atheniensium senescunt.
To refuse, declinare aliquid (by getting out of its way frequent in Cic.): renuere aliquid (by a shake of the head): to decline complying with anybody’s entreaties, petenti alicui aliquid denegare; preces alicujus repudiare: to decline faintly, subnegare aliquid; courteously, belle negare; flatly, praecise negare; sine ulla exceptione or plane praecidere.
Deviate from; [Vid: DEVIATE].
To decline a word, verbum immutare casibus; verbum declinare (used in the old Grammarians of every kind of grammatical inflection).

Quick answer

What is the Latin word for decline?
The usual Latin words for “decline” are dēminūtiō, imminūtiō, extenuātiō; also remissiō, mītigātiō, tābēs. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.