PS

*tḫḫ - to be soft, moistened (EDA II)

Akkadian
taḫāḫu - to soak, moisten (CAD T 39)

G stem attested only as infinitive.

Hebrew
ˁăpar ha-ttīḥūaḥ - crushed, loose earth (Jastrow 1664)

pB.

Syriac
tḥiḥ - rotten (LSyr. 820)

tāḥ ‘it is rotten, soft’ (LSyr. 818)

Arabic
tḫḫ - to become sour; to become soft by reason of too much water (Lane 298)