Reconstruction:Proto-Slavic/lastъka

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

Proto-Slavic

Etymology

By surface analysis, *laska +‎ *-ъka.

Noun

*lastъka f

1. swallow

Inflection

Declension of *lastъka (hard a-stem)

	singular	dual	plural
nominative	*lastъka	*lastъcě	*lastъky
genitive	*lastъky	*lastъku	*lastъkъ
dative	*lastъcě	*lastъkama	*lastъkamъ
accusative	*lastъkǫ	*lastъcě	*lastъky
instrumental	*lastъkojǫ, *lastъkǫ**	*lastъkama	*lastъkami
locative	*lastъcě	*lastъku	*lastъkasъ, *lastъkaxъ*
vocative	*lastъko	*lastъcě	*lastъky

^* -asъ is the expected Balto-Slavic form but is found only in some Old Czech documents; -axъ is found everywhere else and is formed by analogy with other locative plurals in -xъ.
^** The second form occurs in languages that contract early across /j/ (e.g. Czech), while the first form occurs in languages that do not (e.g. Russian).

Derived terms

• *lastavica f
• *lastovica f

Descendants

• East Slavic:
  • Old East Slavic: *ластъка (*lastŭka)
    • Belarusian: ла́стка (lástka)
      • ⇒ Belarusian: ла́стачка (lástačka)
    • Middle Russian: ластка (lastka)
      • Russian: ла́стка (lástka) (dialectal)
        • ⇒ Russian: ла́сточка (lástočka)