This Proto-Slavic entry contains reconstructed words and roots. As such, the term(s) in this entry are not directly attested, but are hypothesized to have existed based on comparative evidence.



This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

From Proto-Balto-Slavic *ab, from Proto-Indo-European *h₃ebʰi.

See also:



  1. (with locative) around, about
  2. (with locative) concerning
  3. (with accusative) against, on
  4. (with accusative) during

Usage notesEdit

Because of the law of open syllables, the final -b was often dropped. It was retained when the next word began with a vowel or with l or r. When combined with a word that began with v, it was also retained, but the v was dropped.

See alsoEdit

Derived termsEdit


  • East Slavic:
    • Belarusian: аб (ab)
    • Russian: о (o), об (ob), обо (obo)
    • Ukrainian: об (ob)
  • South Slavic:
  • West Slavic: