Where does “obreptum” come from?

obreptum (Latin) comes from Latin ob, from Proto-Italic *op.

obreptum (Latin): accusative supine of obrēpō; to creep up to

Definitions

Step	Language	Word	Meaning
1	Latin	ob	in the direction of, to, towards; on account of,...
2	Proto-Italic	*op	—

obreptum — Etymology, Origin & Word History | Etymology Explorer