Where does “отборный” come from?

отборный (Russian) comes from Russian отбо́р, from Russian отбира́ть, from Russian от-, from Proto-Slavic otъ-.

отборный (Russian): select, choice, picked

Definitions

select, choice, picked

Ancestry of “отборный”, step by step

Step	Language	Word	Meaning
1	Russian	отбо́р	—
2	Russian	отбира́ть	—
3	Russian	от-	away from
4	Proto-Slavic	otъ-	—

Every word from Proto-Slavic otъ- →

отборный — Etymology, Origin & Word History | Etymology Explorer