Where does “parthenin” come from?

parthenin (English) comes from English Parthenium, from Ancient Greek παρθένιον, from Ancient Greek παρθένος, from Proto-Indo-European pstḗn, from Proto-Indo-European ph₂ǵ-sth₂-ḗn, from Proto-Indo-European steh₂- — to stand.

parthenin (English): A toxic substance in the flowering plant...

Definitions

A toxic substance in the flowering plant...

Ancestry of “parthenin”, step by step

Step	Language	Word	Meaning
1	English	Parthenium	—
2	Ancient Greek	παρθένιον	—
3	Ancient Greek	παρθένος	maidenly; chaste; young, unmarried woman; maiden
4	Proto-Indo-European	pstḗn	breast, teat
5	Proto-Indo-European	ph₂ǵ-sth₂-ḗn	—
6	Proto-Indo-European	steh₂-	to stand

Every word from Proto-Indo-European steh₂- →

parthenin — Etymology, Origin & Word History | Etymology Explorer