Where does “liitto” come from?

liitto (Finnish) comes from Finnish liittää, from Finnish -ttaa, from Proto-Finnic -ttadak, from Proto-Uralic -kta-.

liitto (Finnish): cooperation based on common agreement, union;...

Definitions

Step	Language	Word	Meaning
1	Finnish	liittää	to join, connect, attach, fasten; to attach,...
2	Finnish	-ttaa	Forms causative verbs. May be applied to verbs...
3	Proto-Finnic	-ttadak	Creates causative verbs from regular verbs,...
4	Proto-Uralic	-kta-	—

liitto — Etymology, Origin & Word History | Etymology Explorer