Where does “liker” come from?

liker (Old Swedish) comes from Old Norse líkr, from Proto-Germanic galīkaz, from Proto-Indo-European leyǵ- — to bind, tie.

Ancestry of “liker”, step by step

Step	Language	Word	Meaning
1	Old Norse	líkr	same, like, equal; alike, resembling; probable,...
2	Proto-Germanic	galīkaz	alike, similar; equal
3	Proto-Indo-European	leyǵ-	to bind, tie

liker — Etymology, Origin & Word History | Etymology Explorer