Where does “акростих” come from?

акростих (Russian) comes from Ancient Greek ἀκροστιχίς, from Ancient Greek ἄκρος, from Ancient Greek ὦμος, from Proto-Indo-European h₃émōs — shoulder.

акростих (Russian): acrostic

Definitions

acrostic

Ancestry of “акростих”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἀκροστιχίς	acrostic
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 →