What is the Latin word for positively?

The usual Latin words for “positively” are certus, pertināx, affirmō. The right choice depends on the sense; see the distinctions below.

English → Latin

“positively” in Latin

certuscertain; fixed, settled, firm; resolved, determined pertināxpersevering, obstinate; pertinacious; tenacious affirmōto present (something) as fixed, firm, or true; affirm, assert, maintain; to strengthen, confirm, corroborate; to make c

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

positively

re; re ipsa; re vera, or revers (really): certe (surely): pertinaciter (confidently): affirmate (with an oath): affirmanter (Gell., with confidence).

Quick answer

What is the Latin word for positively?: The usual Latin words for “positively” are certus, pertināx, affirmō. 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.