PS

*ṭVlḥīm- - spleen (SED I No. 278; Kogan 2011: 219)

The metathetic variant + suffix *-(ī)m-. Cf. *ṭiḥāl- - spleen. 

Akkadian
ṭulīmu - spleen (CAD Ṭ 124, AHw. 1394)
Ebla
ṭì-ˀà-mu - black intestine (VE 582)
= Sum. ŠÀ.GI6
Mehri
ṭεlḥáym - spleen (ML 410)
Jibbali
ṭεlḥím - spleen (JL 277)