Where does “kophar” come from?

kophar (Old High German) comes from Latin cūprum, from Latin cȳprium, from Ancient Greek Κύπρος, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “kophar”, step by step

Step	Language	Word	Meaning
1	Latin	cūprum	copper (the metal)
2	Latin	cȳprium	—
3	Ancient Greek	Κύπρος	Cyprus
4	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
5	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek Κύπρος →