Where does “*skirm” come from?
*skirm (Old Saxon) comes from Proto-West Germanic skirmi, from Proto-Germanic skirmiz, from Proto-Indo-European sḱer- — to caw, crow.
*skirm (Old Saxon) comes from Proto-West Germanic skirmi, from Proto-Germanic skirmiz, from Proto-Indo-European sḱer- — to caw, crow.