LATIN DICTIONARYLexicon Latīnum
English → Latin

“declension” in Latin

The English word declension itself goes back to Latin clīnō, through dēclīnātiō.

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

declension
Declining state, ruina (PROP. of a building; figuratively of a state, reipublicae): declension of manners, mores corrupti: declension of bodily strength, defectio virium; vires corporis affectae: declension of one’s mental powers, deminutio mentis.
Inflexion of words, declinatio; flexus; flexura.

Quick answer

What is the Latin word for declension?
The usual Latin words for “declension” are ruīna, dēclīnātiō, flectō; also rēspūblica. 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.