In the Akkadian, possessive suffixes were frequently used; they were attached to a noun after the case ending, e.g. /Sarrum/ nom.sg. "king" /Sarrumi:/ nom.sg. + poss.suffix "my king" /Sarri:/ gen.sg. "king's" /Sarri:ja/ gen.sg. + poss.suffix "my king's" For the second and third person, they are differentiated by gender, i.e. masculine or feminine., and for all persons by number, i.e. singular or plural. Although they were dual verb forms in Akkadian, I did not see any hints for a dual suffixes. The suffixes were quite lasting and can be traced from Old Akkadian until the end of a living Babylonian language. As Babylonian was used for certain official purposes even longer, I guess that they can be found as long as Babylonian was in any use, but I don't know that. If you wanted to stress the ownership or to express opposites, own possessive pronouns were available as well. They agree with the noun in case and in gender. e.g. /ma:tam la: kattam/ "this land not owned by you" land.akk.s.g - negation - your.f.akk.sg. /ma:tam kattam/ "your land" (and not mine or somebody's else) land.akk.s.g. - your.f.akk.sg. The possessive suffixes were in the singular -ja "my" -ki "thy", mask.sg. -ka "thy",fem.plk -Su "his" -Sa "her" in the plural -ni "our" -kunu "your", mask. pl. -kina "your", fem.pl. -Sunu "their", mask.pl. -Sina "their", fem.pl. /-ja/ became d -i: (after consonants) or /-?a/ (after /-u:/ case endings) "my" To give a framework, Akkadian was a SOV-language (though it could be OSV to focus on the object) and used pronominal suffixes on verbs for direct or indirect object. I did no research on other languages with possessive suffixes, but I think that a language with possessive suffixes will also tend to use other pronominal suffixes. All examples are from Kaspar K. Riemenschneiders "Lehrbuch des Akkadischen".