Finnish word polku comes from Finnish polkea, Finnish -u

Detailed word origin of polku

Dictionary entry	Language	Definition
polkea	Finnish (fin)	(figuratively) to oppress. To pedal. To stamp (with one's foot or feet). To treadle.
-u	Finnish (fin)	Derives a number of nouns from other nouns.. Forms nouns from verbs. Most common with e- and i-stem verbs.
polku	Finnish (fin)	(computing, graph theory) path. Act of treading, stomping; used only in compounds.. Path, trail, track.

Words with the same origin as polku