PS

*ṭmm, ˀṭm - to be deaf and dumb (SED I No. 75ᵥ; Kogan 2011: 230)

Akkadian
ṭummumu - deaf person (CAD Ṭ 125, AHw. 1394)
Hebrew
ˀṭm - to stop one’s ears (HALOT 37)
Syriac
ˀaṭṭīmā - deaf (LSyr. 14, SL 31)
Syriac
ṭmīmā - firm; solid; mute (LSyr. 14, SL 536)
Tigrinya
ṭämämä - to close the eyes and the mouth of a dying person (TED 2413)
probably related