What is the Latin word for redundant?

The usual Latin words for “redundant” are redundō, supervacāneus, supersum. The right choice depends on the sense; see the distinctions below.

English → Latin

“redundant” in Latin

redundōto overflow, abound, redound; to pour or spout forth or out; cause to pour out supervacāneusabove what is necessary, unnecessary, needless, superfluous, redundant supersumto remain, to still remain, to be left, left over; to survive (usually + dative); to be in abundance, to abound

The English word redundant itself goes back to Latin unda, through redundāns.

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

redundant

redundans: supervacaneus: supervacaneus et inutilis (☞ the Golden Age supervacuus was used only by the poets; superfluus did not come into use at all until the third century). To be redundant., redundare (Quint., 1, 4, 9); supervacaneum esse, superesse (opposed to deesse).

Quick answer

What is the Latin word for redundant?: The usual Latin words for “redundant” are redundō, supervacāneus, supersum. 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.