Etymology and origin of the Latin word interdum
Forms
interdum (not comparable)[1]
Etymology
It is formed from Latin inter (“between”) + dum (“while”).[2][1][3]
Earliest recorded meaning
Köbler dates it from Plautus,[3] who makes Jupiter say ego sum ille Amphitruō … quī interdum fīō Iuppiter, quandō lubet, “I am that Amphitryon who now and then becomes Jupiter, whenever I like”.[2][4]
Semantic evolution
Interdum is “at times, now and then, occasionally”, like nōnnumquam (Cicero: interdum cursus est in ōrātiōne incitātior, interdum moderāta ingressiō, “in a speech there is sometimes a swifter pace, sometimes a measured step”).[2][4][1] In Silius and later it can also mean “meanwhile, for the time being”.[2]
Church Latin glosses it “sometimes, occasionally, now and then”,[5] and in Medieval Latin “meanwhile” is common.[6]
Timeline
- c. 250–184 BC – Plautus: quī interdum fīō Iuppiter.[2][3]
- 81–43 BC – Cicero: interdum cursus est in ōrātiōne incitātior.[4][3]
- 25–101 AD – Silius uses it in the sense “meanwhile”.[2][3]
Meanings
Adverb
- sometimes, at times, now and then, occasionally.[2][4][1][5]
- meanwhile, in the meantime; for the time being.[2][6]
Word family
- interduātim
Related words
References
- ^ a b c d e f Wiktionary, the free dictionary, https://en.wiktionary.org
- ^ a b c d e f g h Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
- ^ a b c d e Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
- ^ a b c d Lewis, Charlton T.; Short, Charles (1879), A Latin Dictionary, Oxford: Clarendon Press
- ^ a b Stelten, Leo F. (1995), Dictionary of Ecclesiastical Latin, Peabody, Mass.: Hendrickson
- ^ a b Niermeyer, J. F. (1976), Mediae Latinitatis Lexicon Minus, Leiden: Brill
Cite this entry
“Interdum.” Etymologically, 18 Oct. 2026, etymologically.com/la/interdum. Accessed 18 Oct. 2026.
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