Where does “luokkakaveri” come from?

luokkakaveri (Finnish) comes from Finnish luokka, from Finnish luokki, from Proto-Slavic lǫkъ, from Proto-Balto-Slavic *lankás, from Proto-Indo-European lenk- — to bend.

luokkakaveri (Finnish): classmate

Definitions

classmate

Ancestry of “luokkakaveri”, step by step

luokkakaveri traces back through two separate lines of ancestry.

via Finnish luokka

Step	Language	Word	Meaning
1	Finnish	luokka	class; class, social class; grade
2	Finnish	luokki	shaft bow
3	Proto-Slavic	lǫkъ	bow
4	Proto-Balto-Slavic	*lankás	bow
5	Proto-Indo-European	lenk-	to bend

via Finnish kaveri

Step	Language	Word	Meaning
1	Finnish	kaveri	pal, friend, buddy, mate; dude, bloke
2	Yiddish	חבֿר	friend, buddy, comrade; boyfriend; comrade
3	Hebrew	חָבֵר	male friend, comrade; friend; {{l\|en\|comrade}}

Every word from Proto-Indo-European lenk- →Every word from Proto-Balto-Slavic *lankás →Every word from Proto-Slavic lǫkъ →