English → Latin
“diary” in Latin
ephēmerisa day-book, diary, ephemeris; a journal, periodicaldiāriumdaily allowance, wage (of food or pay); a diary, a journal
The English word diary itself goes back to Latin diēs, through diārium.
Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864
diary
factorum dictorumque descripta per dies: commentarii diurni (a daily record of household affairs and events, kept, according to Bremi, by a slave; Suet., Oct, 64): memorialis libellus (note-book; Id., Caes., 56): ephemeris (account-book of daily expenses; Nep., Att., 13, 6): diarium (qui diarium scribunt, quam Graeci ἐφημερίσα vocant, Asell. ap. Gell., 5, 18, 8). To keep a diary, facta dictaque describere per dies: diarium scribere (after Asell., ; Vid: above). To set down anything in a diary, aliquid in commentarios diurnos referre (Suet.). To record in a diary the facts that I hear stated, *eorum, quae audio (ab aliquo), commentarios conricere (Muret.).
Quick answer
- What is the Latin word for diary?
- The usual Latin words for “diary” are ephēmeris, diārium. 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.