Where does “ακριβής” come from?

ακριβής (Greek) comes from Ancient Greek ἀκριβής, from Ancient Greek ἄκρος, from Ancient Greek ὦμος, from Proto-Indo-European h₃émōs — shoulder.

ακριβής (Greek): accurate, exact, precise; punctual, on time;...

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	ἀκριβής	accurate, precise; scrupulous, methodical
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