PCS

*pšḥ - to be spacious (EDA I 423)

May be related to Akk. pašāḫu ‘to rest, to calm down’.

Syriac
pšḥ - to cease, desist (LSyr. 611, SL 1257)
Arabic
fsḥ - to be spacious, roomy; VII. to be dilated with joy (one's bosom) (Lane 2395)
Sabaic
h-fs₁ḥ - to enlarge a structure (SD 46)
Sabaic
mfs₁ḥt - enlargement (SD 46)