Where does “Metamorphoses” come from?

Metamorphoses (Latin) comes from Ancient Greek μετᾰμορφώσεις, from Ancient Greek μετᾰμόρφωσῐς.

Ancestry of “Metamorphoses”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	μετᾰμορφώσεις	—
2	Ancient Greek	μετᾰμόρφωσῐς	—

Metamorphoses — Etymology, Origin & Word History | Etymology Explorer