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).

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)

References

Trubachyov, Oleg, editor (1987), “*lastъka”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 14 (*labati – *lěteplъjь), Moscow: Nauka, page 45

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[1] Trubachyov, Oleg, editor (1987), “*lastъka”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 14 (*labati – *lěteplъjь), Moscow: Nauka, page 45