Where does “ῠ̔ποκρῑ́νω” come from?

ῠ̔ποκρῑ́νω (Ancient Greek) comes from Ancient Greek ῠ̔πο-, from Ancient Greek ὑπό, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

Ancestry of “ῠ̔ποκρῑ́νω”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ῠ̔πο-	under, lower; by, under; under”, “beneath
2	Ancient Greek	ὑπό
3	Proto-Indo-European	upó	under, below
4	Proto-Indo-European	h₃ewp-	—