PWS

*γms - to immerse or immerge in water or other fluid (Kogan 2005c:207)

Syriac
ˁmaš - submerged, immerged (LSyr. 533)
Mandaic
amš - to submerge, plunge into (MD 23)
Geez
ḫammasa - to swim (CDG 234)
Tigre
ḥammäsä - to swim (WTS 61)
Mehri
γəmōs - to disappear (ML 138)
Jibbali
γŏs - to disappear behind (JL 86)
Harsusi
γemōs - to disappear (HL 45)
Soqotri
ˁámes - to dive, plunge (LS 315)