Where does “kelpuuttaminen” come from?

kelpuuttaminen (Finnish) comes from Finnish kelpuuttaa, from Finnish uuttaa, from Finnish uu, from Latin U, from Latin V, from Etruscan ? — u.

Ancestry of “kelpuuttaminen”, step by step

Step	Language	Word	Meaning
1	Finnish	kelpuuttaa	To qualify, to accept, to pass, to settle for
2	Finnish	uuttaa	to extract; Third-person singular indicative...
3	Finnish	uu	The name of the Latin-script letter U; hole, nest
4	Latin	U	—
5	Latin	V	ve
6	Etruscan	?	u