Where does “slægr” come from?

slægr (Old Norse) comes from Proto-Germanic slōgiz, from Proto-Indo-European slak- — to hit; strike; to hit, strike, throw; to hit,...

Ancestry of “slægr”, step by step

Step	Language	Word	Meaning
1	Proto-Germanic	slōgiz	able to strike; sly, cunning, clever
2	Proto-Indo-European	slak-	to hit; strike; to hit, strike, throw; to hit,...