Where does “отслужи́ть” come from?

отслужи́ть (Russian) comes from Russian служи́ть, from Old East Slavic служити, from Proto-Slavic *služìti.

Ancestry of “отслужи́ть”, step by step

Step	Language	Word	Meaning
1	Russian	служи́ть	—
2	Old East Slavic	служити	—
3	Proto-Slavic	*služìti	—

Words derived from “отслужи́ть”

отслуживать

Every word from Proto-Slavic *služìti →

отслужи́ть — Etymology, Origin & Word History | Etymology Explorer