Where does “πεντετηρικός” come from?

πεντετηρικός (Ancient Greek) comes from Ancient Greek ἔτος, from Ancient Greek ϝέτος, from Proto-Indo-European wétos, from Proto-Indo-European wet- — year; year-old.

πεντετηρικός (Ancient Greek): penteteric

Definitions

penteteric

Ancestry of “πεντετηρικός”, step by step

πεντετηρικός traces back through two separate lines of ancestry.

via Ancient Greek ἔτος

Step	Language	Word	Meaning
1	Ancient Greek	ἔτος	year
2	Ancient Greek	ϝέτος	—
3	Proto-Indo-European	wétos	year
4	Proto-Indo-European	wet-	year; year-old

via Ancient Greek πέντε

Step	Language	Word	Meaning
1	Ancient Greek	πέντε	five
2	Proto-Hellenic	pénkʷe	five
3	Proto-Indo-European	pénkʷe	five

Every word from Proto-Indo-European wet- →Every word from Proto-Indo-European wétos →Every word from Ancient Greek ϝέτος →