English
lipotropin
From lipo- + tropin.
Proto-Indo-European *leyp- ‘to stick’
Proto-Hellenic *lípos ‘fat’
Ancient Greek λῐ́πος ‘animal fat’
English lipo-
Today it means
noun A pituitary hormone that promotes the metabolism of fat, and is a precursor to the endorphins.
Language periods are conventional ranges, not dates for this word.
Etymograph / lipotropin