Where does “kopati” come from?

kopati (Old Czech) comes from Proto-Slavic kǫpati, from Proto-Indo-European (s)kep- — to grave, to strike; to chop, to dig; to grave,...

Ancestry of “kopati”, step by step

Step	Language	Word	Meaning
1	Proto-Slavic	kǫpati	to bathe; to swim
2	Proto-Indo-European	(s)kep-	to grave, to strike; to chop, to dig; to grave,...