Where does “karjapolku” come from?

karjapolku (Finnish) comes from Finnish karja, from Proto-Germanic harjaz, from Proto-Indo-European kóryos, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

karjapolku (Finnish): livestock trail, cattle trail, drove track along which cattle are habitually driven

Definitions

livestock trail, cattle trail, drove track along which cattle are habitually driven

Ancestry of “karjapolku”, step by step

karjapolku traces back through two separate lines of ancestry.

via Finnish karja

Step	Language	Word	Meaning
1	Finnish	karja	cattle domesticated bovine animals sometimes with a specifier
2	Proto-Germanic	harjaz	army; army leader; commander; warrior
3	Proto-Indo-European	kóryos	war; troops; army; war, troops
4	Proto-Indo-European	ḱer-	to grow, to make grow, to nourish; to plait,...
5	Proto-Indo-European	kr̥-	to turn, to bend
6	Proto-Indo-European	ker-	army

via Finnish polku

Step	Language	Word	Meaning
1	Finnish	polku	path, trail, track; path; treading, stomping
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 ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →