ginasuw

/ɡinasuw/

Cases

FormWhen to use it
nominativeginasuwthe mercurythe plain dictionary form — the doer of the sentence
genitiveginasuwnuthe mercury'sthe owner — whose it is
accusativeginasuwnuthe mercury (as the object)a specific, known object — whom or what
dativeginasuwğato the mercurydirection or recipient — to where, to whom
locativeginasuwdaat / in the mercurywhere it is; also having — mende bar, "I have it"
ablativeginasuwdanfrom the mercurywhere 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

Owned
myginasuwummy mercury
yourginasuwungyour mercury
his / herginasuwuhis / her mercury
ourginasuwubuzour mercury
you all'sginasuwuğuzyou all's mercury
theirginasuwlarıtheir mercury

There is no plural of this word. The ending would attach like any other — it is the word, not the grammar, that refuses: this is not something Karachay counts.