disk

/disk/

Cases

SingularPluralWhen to use it
nominativediskthe discusdisklethe discusesthe plain dictionary form — the doer of the sentence
genitivedisknithe discus'disklenithe discuses'the owner — whose it is
accusativedisknithe discus (as the object)disklenithe discuses (as the object)a specific, known object — whom or what
dativediskgeto the discusdisklegeto the discusesdirection or recipient — to where, to whom
locativediskdeat / in the discusdiskledeat / in the discuseswhere it is; also having — mende bar, "I have it"
ablativediskdenfrom the discusdiskledenfrom the discuseswhere 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
mydiskimmy discusdisklerimmy discuses
yourdiskingyour discusdiskleringyour discuses
his / herdiskihis / her discusdisklerihis / her discuses
ourdiskibizour discusdiskleribizour discuses
you all'sdiskigizyou all's discusdisklerigizyou all's discuses
theirdiskleritheir discusdiskleritheir discuses

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