LATIN DICTIONARYLexicon Latīnum
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“interfere” in Latin

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

interfere
se immiscere: se inserere alicui rei (to thrust one’s self into it): se admiscere alicui rei: se interponere alicui rei or in aliquid: auctoritatem suam interponere or inserere alicui rei (to interpose one’s authority): interesse alicui rei (to take part in it, negotiis, etc.; not, of course, implying improper interference): officere or officere et obstare alicui rei (to interfere with its execution; e.g., consiliis alicujus; meis commodis). Not to interfere in anything, abesse or se abstinere ab aliqua re: to interfere in anything against anybody’s will, aliquo invito aspirare or accedere ad aliquid (e.g., ad meam pecuniam, Cic., 2 Verr., 1, 54, 142): don’t you interfere, ne te admisce: if you will, do as you like; I shall not interfere, si quod voles, facies; nihil interpono: do it and welcome, I shall not interfere, per me licet (e.g., per me vel stertas licet, you may snore if you will; I shall not interfere with you). To interfere with what does not belong to one, alienae rei se immiscere (Pomponius, De Verb. Sign., 36), or aliena negotia curare (Hor., to mind other people’s business). To interfere to prevent anything, se interponere quominus, etc., interpellare with quominus (respublica a me administrari possit, Brut.), or ne (senatusconsultum fieret, Liv.), or quin (quibus vellem, uterer, Mal., ap. Cic.). ☞ To interfere to prevent anything, is, intercedere alicui rei, in post-Augustan, writers; which in Cic., etc., is confined to the interposition of the tribunes’ veto, etc.
INTRANS., To clash, Vid: .

Quick answer

What is the Latin word for interfere?
The usual Latin words for “interfere” are officiō, negōtium. 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.