The story
- Latin · derived fromlac“milk”
- Ancient Greek · derived fromπρό“before”
- English todayprolactin
From pro- (from Ancient Greek πρό (pró, “before”)) + lact- (variation of lacto-, from Latin lac (“milk”)) + -in (modification of -ine).
Words from the same roots
Ancient Greekπρό all →
prophylaxispro-prophyllprothalamion
Latinlac all →
lactificlactifugelacto-lactobutyrometer
Etymology from Wiktionary, CC BY-SA 4.0.