LATIN DICTIONARYLexicon Latīnum
English → Latin

“decrease” in Latin

The English word decrease itself goes back to Latin crēscō, through decrescere.

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

decrease
TRANS., minuere (to make less in number, magnitude, weight, and importance; opposed to augere, e.g., vectigalia; alicujus gloriam; molestias; potentiam et auctoritatem senatus): imminuere (also opposed to augere, e.g., the number of the Senate, numerum patrum; troops, copias; anybody’s renown, alicujus laudem): deminuere aliquid or de aliqua re (to make less by taking away from anything, e.g., vectigalia; vires; aliquid de potestate): extenuare (to decrease by abating; e.g., sumptus; molestias; spem): levare; sublevare (to decrease by making lighter; e.g. pretium, annonam; inopiam; pericula): elevare (to decrease, both in a good sense and in a bad; e.g., aegritudinem; sollicitudinem; auctoritatem; fidem alicujus rei): lenire (to decrease by lessening the sensation of anything; e.g., dolores; febrem quiete; morbum temperantia): deminuere aliquid de aliqua re (by deducting; e.g., a Grecian mina by deducting five drachmae, de mina una quinque numos j; ☞ diminuere and comminuere cannot be used in this sense): detrahere aliquid de aliqua re (e.g., de tota pecunia quinquagesimam partem).
decrease
INTRANS., decrescere (to grow less, shorter, etc.; opposed to crescere; e.g., dies, pondus, admiratio; flumina, etc.): minui; se minuere; also minuere only (to become less): imminui (to decrease inwardly): remitti; se remittere; also remittere only (to decrease or abate; e.g., of rain, cold, fever, etc.): levari; sublevari (to become lighter): leniri; mitigari (to become milder): defervescere (to become less hot; e.g., aestus, ira, etc. defervescit). Vid. LESSEN, INTRANS.
decrease s.
deminutio; imminutio: extenuatio: remissio: mitigatio: levatio [SYN. in LESSEN]. (☞ Vitr., 9, 14, has quotidiana decrescentia lunae; for which he uses deminutio a little before): defectio (e.g., virium). Compare the substantive with the verbs from which they are derived, under To DECREASE.

Quick answer

What is the Latin word for decrease?
The usual Latin words for “decrease” are minuō, immineō, extenuō; also levō, sublevō, ēlevō. 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.