This is the 6189th most frequent Russian word.
терпения
Patience.
The word 'терпения' is used in the genitive case to express a lack of patience in the context of enduring a long wait.
У меня не хватает терпения, чтобы ждать так долго.
I don't have enough patience to wait for such a long time.
Here, 'терпения' is again in the genitive case, describing the concept of patience as it runs out.
Терпения человека может иссякнуть в сложной ситуации.
A person's patience might deplete in a challenging situation.
In this sentence, 'терпения' is in the genitive case, denoting patience as a required quality for ongoing practice.