köken: First attested in the Bullyu dugongbu si eonhae (分類杜工部詩諺解 / 분류두공부시언해), 1481, as Middle Korean 요〮조ᅀᆞᆷ〮 (Yale: yócwòzóm). Compound of 요 (yo) + 즈음 (jeueum).
köken: Etymology tree Proto-Indo-European *dyew-der. Proto-Balto-Slavic *dein-der. Proto-Slavic *dьnь Proto-Indo-European *ḱe Proto-Indo-European *ís Proto-Indo-European *ḱís Proto-Balto-Slavic *śís Proto-Slavic *sь Proto-Slavic *dьnьsь Slovak dnes Inherited from Proto-Slavic *dьnьsь. Compare to Slovene dánes and Bulgarian днес (dnes).