The Hittite word a-i-iš
Word a-i-iš
Meaning mouth
See also Luwian: aaš- ‘mouth’
Luwian: ásaza- ‘to speak’
C. Luwian: a-a-aš-ša ‘mouth’

Comments
nom.-acc.sg.n. a-i-iš
gen.sg. iš-ša-aš
dat.-loc.sg. iš-ši-i
all.sg. iš-ša-a-a

Other words that might be of interest
titita ‘nose’, pata ‘foot’