PC

*ḥudṯ- - new moon, month (Pardee 2000: 151‒152, Kogan 2015: 293)

is derived from PS *ḥdṯ ‘to be new’

Ugaritic
ḥdṯ - new moon (DUL 356)
Phoenician
ḥdš - new moon; month (DNWSI 350‒351)
Hebrew
ḥōdäš - new moon; month (HALOT 294)