Where does “kotilohaukka” come from?

kotilohaukka (Finnish) comes from Finnish kotilo, from Finnish -lö, from Finnish -lä, from Finnish -as, from Proto-Finnic -s, from Proto-Finno-Ugric -s.

kotilohaukka (Finnish): snail kite, Rostrhamus sociabilis

Definitions

snail kite, Rostrhamus sociabilis

Ancestry of “kotilohaukka”, step by step

kotilohaukka traces back through two separate lines of ancestry.

via Finnish kotilo

Step	Language	Word	Meaning
1	Finnish	kotilo	gastropod, mollusc, seashell, snail; the shell of...
2	Finnish	-lö	Front vowel variant of -lo
3	Finnish	-lä	Front vowel variant of -la
4	Finnish	-as	Forms some adjectives; Forms some nouns
5	Proto-Finnic	-s	Forms nouns
6	Proto-Finno-Ugric	-s	—

via Finnish haukka

Step	Language	Word	Meaning
1	Finnish	haukka	hawk; bite
2	Proto-Finnic	habukka	hawk, falcon
3	Proto-Germanic	habukaz	hawk
4	Proto-Indo-European	kap-	to seize, hold

Every word from Proto-Finno-Ugric -s →Every word from Finnish -lä →Every word from Finnish -lö →