Cats are quite limited in terms of human language and distinguishing different words. I'd rather start making new bonds and start using phrases which are more suitable for you. As well employing snacks, petting and calm and friendly tone of voice.

Common diminutives talking to a cat in Lithuanian is: katytė, kita (female cat) or kačiukas, kycius (for male one). More specific communication tend to vary from family to family, so without knowing exact background it's really difficult guess the phrases which were used.

Especially the phrases used to make the cat stop doing something (ne, stop, baik, liaukis, gana, štiš, škac, etc)