Where does “заостати” come from?

заостати (Serbo-Croatian) comes from Serbo-Croatian остати, from Serbo-Croatian о, from Proto-Slavic o(b), from Proto-Balto-Slavic ab, from Proto-Indo-European h₃ebʰi.

заостати (Serbo-Croatian): to fall behind, lag, drop back

Definitions

  1. to fall behind, lag, drop back

Ancestry of “заостати”, step by step

заостати traces back through two separate lines of ancestry.

via Serbo-Croatian остати

StepLanguageWordMeaning
1Serbo-Croatianостатиto stay, remain
2Serbo-Croatianоon, against; about, concerning
3Proto-Slavico(b)around, about; concerning; against, on
4Proto-Balto-Slavicab—
5Proto-Indo-Europeanh₃ebʰi—

via Serbo-Croatian за

StepLanguageWordMeaning
1Serbo-Croatianзаfor; behind, in back of, at; during
2Proto-Slaviczabehind, after (stationary)
Every word from Proto-Indo-European h₃ebʰi →Every word from Proto-Balto-Slavic ab →Every word from Proto-Slavic o(b) →