Where does “cōnstāns” come from?

cōnstāns (Latin) comes from Latin constō, from Proto-Italic komstaēō.

Ancestry of “cōnstāns”, step by step

Step	Language	Word	Meaning
1	Latin	constō	—
2	Proto-Italic	komstaēō	—

cōnstāns — Etymology, Origin & Word History | Etymology Explorer