Where does “Jafeth” come from?

Jafeth (Middle English) comes from Old English Iafeth, from Latin Iaphet, from Koine Greek Ἰάφεθ, from Hebrew יֶפֶת.

Ancestry of “Jafeth”, step by step

Step	Language	Word	Meaning
1	Old English	Iafeth	—
2	Latin	Iaphet	—
3	Koine Greek	Ἰάφεθ	—
4	Hebrew	יֶפֶת	—