Where does “tasoituttaa” come from?

tasoituttaa (Finnish) comes from Finnish -uttaa, from Ingrian -ua, from Finnish -ttää, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

tasoituttaa (Finnish): to get (something) flattened, to get (something) smoothed, to get (something) evened (out) make someone or something flatten, smooth or even something out

Definitions

to get (something) flattened, to get (something) smoothed, to get (something) evened (out) make someone or something flatten, smooth or even something out

Ancestry of “tasoituttaa”, step by step

Step	Language	Word	Meaning
1	Finnish	-uttaa	aivastaa + API → aivastuttaa; rakentaa + API →...
2	Ingrian	-ua	Used to form inchoative verbs
3	Finnish	-ttää	Front vowel variant of -ttaa
4	Proto-Finnic	-ttadak	Creates causative verbs from regular verbs,...
5	Proto-Uralic	-kta-	—

Every word from Proto-Uralic -kta- →Every word from Finnish -ttää →Every word from Finnish -uttaa →