Geez

-ya - my (genitive pronominal suffix, 1 sg.) (CDG 625)

PS
*-ī/-ya - my (genitive pronominal suffix, 1 sg.) (Kogan 2009:69)
In most languages *-ya is an allomorph used after long vowels. An exclusion is Ethio-Semitic, where reflexes of *-ya are used in all cases.