Where does “kuršana” come from?

kuršana (Latvian) comes from Latvian kurt, from Proto-Baltic kur-, from Proto-Indo-European ḱer-, from Proto-Indo-European kr̥-, from Proto-Indo-European ker- — army.

kuršana (Latvian): lighting, igniting; verbal noun of kurt

Definitions

lighting, igniting; verbal noun of kurt

Ancestry of “kuršana”, step by step

Step	Language	Word	Meaning
1	Latvian	kurt	to light, to ignite; to heat; to encourage, to...
2	Proto-Baltic	kur-	—
3	Proto-Indo-European	ḱer-	to grow, to make grow, to nourish; to plait,...
4	Proto-Indo-European	kr̥-	to turn, to bend
5	Proto-Indo-European	ker-	army

Every word from Proto-Indo-European ker- →Every word from Proto-Indo-European kr̥- →Every word from Proto-Indo-European ḱer- →