Where does “オーク” come from?

オーク (Japanese) comes from English oak, from Middle English ake, from Old English āc, from Proto-West Germanic ak, from Proto-Germanic ak, from Proto-Indo-European h₁o-ge.

オーク (Japanese): oak; an orc

Definitions

oak; an orc

Ancestry of “オーク”, step by step

Step	Language	Word	Meaning
1	English	oak	A deciduous tree with distinctive deeply lobed...
2	Middle English	ake	Alternative form of ac; Alternative form of ache
3	Old English	āc	oak; oaken ship
4	Proto-West Germanic	ak	but
5	Proto-Germanic	ak	but, however
6	Proto-Indo-European	h₁o-ge	—

Every word from Proto-Indo-European h₁o-ge →Every word from Proto-Germanic ak →Every word from Proto-West Germanic ak →