Reconstruction:Proto-Slavic/dadьka

• *dàdьko

From *dàda +‎ *-ьka.

*dàdьka m

1. Diminutive of *dàda (“senior relative in the family”)

• East Slavic:
  • Old East Slavic: дꙗ́дька (djádĭka), дꙗ́дько (djádĭko)
    • Old Ruthenian: дꙗ́дько (djádʹko), дꙗ́дька (djádʹka), дꙗ́тько (djátʹko), дꙗ́дко (djádko), дꙗ́тко (djátko), дє́дко (djédko)
      • Belarusian: дзя́дзька (dzjádzʹka)
      • Carpathian Rusyn: дя́дько (djádʹko)
      • Ukrainian: дя́дько (djádʹko)
        • → Polish: dziadko, dziadźko (“uncle”) (dialectal)
    • Russian: дя́дька (djádʹka); дя́дько (djádʹko), дядя́ка (djadjáka) (dialectal)
• South Slavic:
  • Macedonian: дотка f (dotka) (dialectal)
• West Slavic:
  • Polish: dådka (“grandma”), dådek, dådki (“grandpa”) (dialectal)

• Trubachyov, Oleg, editor (1977), “*dada”, in Этимологический словарь славянских языков [Etymological dictionary of Slavic languages] (in Russian), numbers 4 (*čaběniti – *děľa), Moscow: Nauka, page 181
• Sławski, Franciszek, editor (1976), “dada”, in Słownik prasłowiański [Proto-Slavic Dictionary] (in Polish), volumes 2 (caca – davьnota), Wrocław: Ossolineum, page 326
• Shansky, N. M., editor (1973), “дя́дька”, in Этимологический словарь русского языка [Etymological Dictionary of the Russian Language] (in Russian), volume 1, number 5 (Д, Е, Ж), Moscow: Moscow University Press, page 230
• Anikin, A. E. (2021) “дя́дя”, in Русский этимологический словарь [Russian Etymological Dictionary] (in Russian), numbers 15 (друг – еренга), Moscow: Nestor-Historia, →ISBN, page 218
• Melnychuk, O. S., editor (1985), “дядя”, in Етимологічний словник української мови [Etymological Dictionary of the Ukrainian Language] (in Ukrainian), volumes 2 (Д – Копці), Kyiv: Naukova Dumka, page 153