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прочный - Wiktionary, the free dictionary

From Wiktionary, the free dictionary

Inherited from Proto-Slavic *prokьnъ, from *prokъ. By surface analysis, прок (prok) +‎ -ный (-nyj).

про́чный (próčnyj) (comparative (по)прочне́е or (по)прочне́й, adverb про́чно, abstract noun про́чность)

  1. durable, strong, firm
  • Vasmer, Max (1964–1973) “прочный”, in Oleg Trubachyov, transl., Этимологический словарь русского языка [Etymological Dictionary of the Russian Language] (in Russian), Moscow: Progress
  • Chernykh, P. Ja. (1993) “прочный”, in Историко-этимологический словарь русского языка [Historical-Etymological Dictionary of the Russian Language] (in Russian), 3rd edition, volume 2 (панцирь – ящур), Moscow: Russian Lang., →ISBN, page 76