Where does “ᚨᚱᚲᚢ” come from?

ᚨᚱᚲᚢ (Proto-Norse) comes from Latin arca, from Latin arceo, from Proto-Italic arkeō, from Proto-Indo-European h₂erk- — to protect, guard, hold, lock.

Ancestry of “ᚨᚱᚲᚢ”, step by step

Step	Language	Word	Meaning
1	Latin	arca	chest, box, coffer, safe; coffin; ark
2	Latin	arceo	I shut up, enclose; box in; I keep off, ward off;...
3	Proto-Italic	arkeō	—
4	Proto-Indo-European	h₂erk-	to protect, guard, hold, lock

ᚨᚱᚲᚢ — Etymology, Origin & Word History | Etymology Explorer