Where does “Epimetheus” come from?

Epimetheus derives from Ancient Greek Ἐπιμηθεύς, from the adjective ἐπιμηθής, ultimately from Proto-Indo-European roots meaning "to think" and "to put."

Ancestry of “Epimetheus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	Ἐπιμηθεύς	afterthought, hindsight
2	Ancient Greek	ἐπῐμηθής	—
3	Ancient Greek	ἐπι-	on, upon, on top of, all over, covering; on,...
4	Ancient Greek	ἐπί	as well, besides; For usage in composition, see...
5	Ancient Greek	Ἡμέρα	—
6	Ancient Greek	ἦμαρ	day; by day; midday
7	Proto-Hellenic	ā́mər	—
8	Proto-Indo-European	h₂eh₃mr̥	heat
9	Proto-Indo-European	h₂eh₃-	to be hot; to burn

Every word from Proto-Indo-European h₂eh₃- →

Epimetheus — Etymology, Origin & Word History | Etymology Explorer