Where does “luokkataistelu” come from?

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

luokkataistelu (Finnish): class struggle

Definitions

class struggle

Ancestry of “luokkataistelu”, step by step

luokkataistelu 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 taistelu

Step	Language	Word	Meaning
1	Finnish	taistelu	fight; struggle; battle
2	Finnish	-u	Forms nouns from verbs. Most common with "e"- and...
3	Proto-Finnic	-u	Forms nouns from adjectives, nouns

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