Etymology

conscious

C3O1N1S1C3I1O1U1S1

Today it means: Alert, awake; with one's mental faculties active. Full definition →

Latin cōnscius
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The story

  1. Latin · borrowed fromcōnscius“conscious, conscious of guilt”
  2. English todayconscious

First use appears c. 1573 in the sense of "aware of wrongdoing".https://web.archive.org/web/20220714064352/https://www.lexico.com/definition/conscious From Latin cōnscius (“conscious, conscious of guilt”), itself from con- (a form of com- (“together”)) + scīre (“to know”) + -us.

Etymology from Wiktionary, CC BY-SA 4.0.