rümka

/rymka/

Cases

SingularPluralWhen to use it
nominativerümkathe small stemmed glassrümkalathe small stemmed glassesthe plain dictionary form — the doer of the sentence
genitiverümkanıthe small stemmed glass'rümkalanıthe small stemmed glasses'the owner — whose it is
accusativerümkanıthe small stemmed glass (as the object)rümkalanıthe small stemmed glasses (as the object)a specific, known object — whom or what
dativerümkağato the small stemmed glassrümkalağato the small stemmed glassesdirection or recipient — to where, to whom
locativerümkadaat / in the small stemmed glassrümkaladaat / in the small stemmed glasseswhere it is; also having — mende bar, "I have it"
ablativerümkadanfrom the small stemmed glassrümkaladanfrom the small stemmed glasseswhere 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
myrümkammy small stemmed glassrümkalarımmy small stemmed glasses
yourrümkangyour small stemmed glassrümkalarıngyour small stemmed glasses
his / herrümkasıhis / her small stemmed glassrümkalarıhis / her small stemmed glasses
ourrümkabızour small stemmed glassrümkalarıbızour small stemmed glasses
you all'srümkağızyou all's small stemmed glassrümkalarığızyou all's small stemmed glasses
theirrümkalarıtheir small stemmed glassrümkalarıtheir small stemmed glasses

The overlap in the last rows is real, not a mistake: rümkaları can mean "his / her small stemmed glasses", "their small stemmed glass", or "their small stemmed glasses" — context decides.