Where does “alter ego” come from?

alter ego (English) comes from Latin alter ego — other self.

alter ego (English): Somebody's alternate personality or persona;...

Definitions

  1. Somebody's alternate personality or persona;...

Ancestry of “alter ego”, step by step

StepLanguageWordMeaning
1Latinalter egoother self

Words derived from “alter ego

Every word from Latin alter ego
alter ego — Etymology, Origin & Word History | Etymology Explorer