The story
- Proto-Slavic · derived from*gladъkъ“smooth”
- Ukrainian · derived fromгладкий
- Slovak · derived fromhladký
- Czech · derived fromhladký
- Upper Sorbian · derived fromhładki
- Belarusian · derived fromгладкі
- Slavic · derived from
- English todayHladki
From a Slavic language, e.g. Belarusian гладкі (hladki), Upper Sorbian hładki, Czech hladký, Slovak hladký, or Ukrainian гладкий (hladkyj), all from Proto-Slavic *gladъkъ (“smooth”).
Etymology from Wiktionary, CC BY-SA 4.0.