PCS

*ḥagg- - festival (Hasselbach– Huehnergard 2007:420; Kogan 2015: 189)

An ultimate relationship to Gez. ḥəgg ‘law, decree, regulation, canon, rite’ is not to be excluded (Kogan 2015: 189)

Hebrew
ḥag - procession, round dance, festival (HALOT 289)
Syriac
ḥaggā - festival (LSyr. 213, SL 411)
Arabic
ḥaǯǯ- - pilgrimage (Lane 514)
Sabaic
ḥg - festival (SD 66)
Qatabanian
ḥg - festival (LIQ 60)
Tigre
ḥəg - a type of sacrifice (WTS 100)
a borrowing from Arabic
Mehri
ḥəg - to go on ḥajj (ML 171)
a borrowing from Arabic
Jibbali
ḥegg - to go on ḥajj (JL 105)
a borrowing from Arabic
Soqotri
ḥgg - to make a pilgrimage, go on hajj (LS 162)

a borrowing from Arabic