Jewish Babylonian Aramaic

ṭəḥōlā, ṭaḥălā - spleen (Jastrow 528)

ṭəḥōlā may be a Hebraism.

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

Cf. *ṭVlḥīm- - spleen.