Where does “īnstantāneus” come from?

īnstantāneus (Medieval Latin) comes from Latin īnstāns, from Latin stō, from Proto-Italic staēō, from Proto-Indo-European sth₂éh₁yeti, from Proto-Indo-European *steh₂-.

Ancestry of “īnstantāneus”, step by step

Step	Language	Word	Meaning
1	Latin	īnstāns	—
2	Latin	stō	—
3	Proto-Italic	staēō	stand
4	Proto-Indo-European	sth₂éh₁yeti	—
5	Proto-Indo-European	*steh₂-	—

Every word from Proto-Indo-European *steh₂- →

īnstantāneus — Etymology, Origin & Word History | Etymology Explorer