What is the Latin word for so called?

The usual Latin words for “so called” are quī, dīcō. The right choice depends on the sense; see the distinctions below.

English → Latin

“so called” in Latin

quīwho, that, which, what dīcōto say, talk, speak, utter, mention; to declare, state; to tell

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

so called

quem, quam, quod vocant, dicunt: qui, quae, quod dicitur. ☞ Not sic, ita dictus, nominatus, appellatus.

Quick answer

What is the Latin word for so called?: The usual Latin words for “so called” are quī, dīcō. 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.