Akkadian

irrū (wirrū) - intestines, gut (CAD I 181)

The form in w- makes the relationship with PS *ˁu/irray(-at)- ‘intestines’ somewhat problematic (cf. DRS 636).

PS
*ˁu/irray(-at)- - intestines; excrement (SED I No. 22, DRS 636)
Scarcely but reliably attested. Phonetic reconstruction highly tentative.