一切經音義 21.126

21.126

決定（決字從兩點不從水邊其從水音乃是水行之決字也）。

Definite (決定: the character 決 [jué] is written with two dots [the ice radical 冫], not with the water radical [氵]. The form with the water radical has the pronunciation of the character meaning the breach or flow of water).