The Armenian word mawru-a
Word mawru-a
Meaning stepmother
See also Attic Greek: μητρυιᾱ ‘stepmother’

Other words that might be of interest
ayr ‘man’, kin ‘woman, wife’, elbayr ‘brother’, mayr ‘mother’, haw ‘grandfather’, hayr ‘father’, mard ‘man, mortal’, skesur ‘mother-in-law’