LATIN DICTIONARYLexicon Latīnum
English → Latin

“instant” in Latin

The English word instant itself goes back to Latin stō, through instans.

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

instant adj.
Earnest, vehement, vehemens: impensus (both of entreaties):
Immediate, praesens (e.g., poena, Cic.; mors, Flor.; auxilium, Cic.). Vid: IMMEDIATE.

Quick answer

What is the Latin word for instant?
The usual Latin words for “instant” are vehemēns, impendō, praesēns; also poena, mors. 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.