Where does “mandibula” come from?

mandibula (Latin) comes from Latin mandō, from Latin manus, from Proto-Italic manus, from Proto-Indo-European man- — human being; man; hand.

mandibula (Latin): jaw

Definitions

Step	Language	Word	Meaning
1	Latin	mandō	—
2	Latin	manus	hand; bravery, valor; violence, fighting
3	Proto-Italic	manus	hand
4	Proto-Indo-European	man-	human being; man; hand

mandibula — Etymology, Origin & Word History | Etymology Explorer