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.

• Derksen: From Proto-Balto-Slavic *nūˀ(d)-, cognate with Lithuanian panū́sti (“to yearn”). Derksen considers the most likely cognates outside of Balto-Slavic to be Old High German nôt (“need, force”), Old English nēod (“need”), English need, which may contain a Proto-Indo-European suffix *-ti- based off of a root *newH- (or *new-). Derksen assumes a relationship with *nùditi (“to compel, to force”) and *nùtiti (“to compel, to force”), which may have distinct root enlargements on top of the same underlying root.
• Vasmer, Trubačev (ESSJa), Chernykh: Cognate with Old East Slavic навь (navĭ), навье (navĭje, “dead man”), Lithuanian nõvyti (“to torment, to ruin, to afflict”), Latvian nâvêt (“to kill”), Latvian nâvîtiês (“to worry, to agonize”), Gothic 𐌽𐌰𐌿𐍃 (naus, “dead man, corpse”) (from Proto-Germanic *nawiz (“corpse”)), Old Irish núnа (“hunger”), from Proto-Indo-European *neh₂w-.

*nyti impf

1. to yearn

• East Slavic:
  • Old East Slavic: нꙑти (nyti)
    • Belarusian: ныць (nycʹ)
    • Russian: ныть (nytʹ)
    • Ukrainian: ни́ти (nýty)
• South Slavic:
  • ⇒ Old Church Slavonic: оунꙑти (unyti)
  • ⇒ Bulgarian: унѝвам (unìvam)
• West Slavic:
  • Old Czech: nýti
    • Czech: nýt
  • Kashubian: nyc, nëc
  • Polish: nyć (obsolete)
  • Slovak: nyť (poetic)
  • Sorbian:
    • Upper Sorbian: nyć

• Vasmer, Max (1964–1973) “ныть”, in Oleg Trubachyov, transl., Этимологический словарь русского языка (in Russian), Moscow: Progress
• Chernykh, P. Ja. (1999) “ныть”, in Историко-этимологический словарь русского языка (in Russian), 3rd edition, volume 1 (а – пантомима), Moscow: Russian Lang., →ISBN, page 582
• Trubachyov, Oleg, editor (1999), “*nyti”, in Этимологический словарь славянских языков (in Russian), numbers 26 (*novoukъ(jь) – *obgorditi), Moscow: Nauka, →ISBN, page 66