The story
- German · borrowed frommilchig“milky”
- Yiddish · borrowed fromמילכיק
- English todaymilchig
From Yiddish מילכיק (milkhik) with the spelling influenced by German, or else borrowed directly from German milchig (“milky”). Doublet of milky.
Etymology from Wiktionary, CC BY-SA 4.0.