The story
- Yiddish · derived fromצדיק
- Hebrew · derived fromצַדִּיק“righteous person”
- English todaytzaddik
From Hebrew צַדִּיק (tsadík, “righteous person”). Many pronunciations have come under the influence of Yiddish צדיק (tsadek).
Etymology from Wiktionary, CC BY-SA 4.0.