The Hittite word iš-ḫa-aš-ša-ra
Word iš-ḫa-aš-ša-ra
IPA išḫaššara
Meaning lady, mistress
See also Hittite: iš-ḫa-a-aš ‘master, lord, owner’

Other words that might be of interest
ḫa-aš-šu- ‘king’