LATIN DICTIONARYLexicon Latīnum
English → Latin

“fluent” in Latin

The English word fluent itself goes back to Latin fluō, through fluens.

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

fluent
PROPR., [Vid: FLOWING].
Of a speaker, lingua promptus: celer (quick): expeditus (without difficulty): copiosus (rich in words, of a writer and his writings). Fluent speech, oratio volubilis or expedita: liquidum genus sermonis (having an agreeable flow; Cic., De Or., 2, 38); lingua celeris et exercitata; linguae celeritas or volubilitas: a fluent speaker, orator volubilis or facilis et expeditus ad dicendum. Vid: FLOWING.

Quick answer

What is the Latin word for fluent?
The usual Latin words for “fluent” are celer, expediō, cōpiōsus; also volūbilitās. 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.