The story
- Latin · derived fromconscientia“knowledge within oneself”
- Old French · derived fromconscience
- Middle English · inherited fromconscience
- English todayconscience
From Middle English conscience, from Old French conscience, from Latin conscientia (“knowledge within oneself”) (a calque of Ancient Greek σῠνείδησῐς (sŭneídēsĭs)), from consciens, present participle of conscire (“to know, to be conscious (of wrong)”), from com- (“together”) + scire (“to know”).
Etymology from Wiktionary, CC BY-SA 4.0.