What is the Latin word for assister?

The usual Latin words for “assister” are adiūtor, auxilium. The right choice depends on the sense; see the distinctions below.

English → Latin

“assister” in Latin

adiūtorhelper, assistant; deputy auxiliumhelp, aid, assistance, relief; antidote, remedy

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

assister

adjutor: qui opem, auxilium, etc., fert alicui: qui alicui adfuit, praesto fuit alicui (in need), etc. Vid: ASSISTANT.

Quick answer

What is the Latin word for assister?: The usual Latin words for “assister” are adiūtor, auxilium. 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.