Page "Tat people (Caucasus)" Paragraph 40

If the Tati-speaking Armenians had been descendents of Persians they would have used at least some Iranian terms connected with the Christian way of life and rituals.

However there no such words in their language, which they call themselves Parseren, i. e. Persian.

All words related to Christianity are Armenian: terter ( priest, instead of Persian kešiš ), zam ( church, instead of Persian kilse ), knunk ( christening, instead of Persian ghosl ta ’ mid ), zatik ( Easter, instead of Persian fesh ), pas ( Lent, instead of Persian ruze ) etc.