leksema

/leksema/

Cases

SingularPluralWhen to use it
nominativeleksemathe lexemeleksemalathe lexemesthe plain dictionary form — the doer of the sentence
genitiveleksemanıthe lexeme'sleksemalanıthe lexemes'the owner — whose it is
accusativeleksemanıthe lexeme (as the object)leksemalanıthe lexemes (as the object)a specific, known object — whom or what
dativeleksemağato the lexemeleksemalağato the lexemesdirection or recipient — to where, to whom
locativeleksemadaat / in the lexemeleksemaladaat / in the lexemeswhere it is; also having — mende bar, "I have it"
ablativeleksemadanfrom the lexemeleksemaladanfrom the lexemeswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
myleksemammy lexemeleksemalarımmy lexemes
yourleksemangyour lexemeleksemalarıngyour lexemes
his / herleksemasıhis / her lexemeleksemalarıhis / her lexemes
ourleksemabızour lexemeleksemalarıbızour lexemes
you all'sleksemağızyou all's lexemeleksemalarığızyou all's lexemes
theirleksemalarıtheir lexemeleksemalarıtheir lexemes

The overlap in the last rows is real, not a mistake: leksemaları can mean "his / her lexemes", "their lexeme", or "their lexemes" — context decides.