rom

/rom/

Cases

SingularPluralWhen to use it
nominativeromthe rumromlathe rumsthe plain dictionary form — the doer of the sentence
genitiveromnuthe rum'sromlanıthe rums'the owner — whose it is
accusativeromnuthe rum (as the object)romlanıthe rums (as the object)a specific, known object — whom or what
dativeromğato the rumromlağato the rumsdirection or recipient — to where, to whom
locativeromdaat / in the rumromladaat / in the rumswhere it is; also having — mende bar, "I have it"
ablativeromdanfrom the rumromladanfrom the rumswhere 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
myromummy rumromlarımmy rums
yourromungyour rumromlarıngyour rums
his / herromuhis / her rumromlarıhis / her rums
ourromubuzour rumromlarıbızour rums
you all'sromuğuzyou all's rumromlarığızyou all's rums
theirromlarıtheir rumromlarıtheir rums

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