Where does “akroterion” come from?

akroterion (Polish) comes from Ancient Greek ἀκρωτήριον, from Ancient Greek ἄκρος, from Ancient Greek ὦμος, from Proto-Indo-European h₃émōs — shoulder.

akroterion (Polish): acroterium

Definitions

acroterium

Ancestry of “akroterion”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἀκρωτήριον	cape, headland, promontory
2	Ancient Greek	ἄκρος	At the edge, extreme, beginning, end: outermost;...
3	Ancient Greek	ὦμος	the shoulder with the upper arm
4	Proto-Indo-European	h₃émōs	shoulder

Every word from Proto-Indo-European h₃émōs →Every word from Ancient Greek ὦμος →Every word from Ancient Greek ἄκρος →