The present article describes the -p edi- past tense in Western Karaim – the first such attempt made in the available scholarly literature. It is important to note that the paper is based not only on philological data collected from manuscripts from the 18th–20th centuries, but also on field research con-ducted by the late Polish Turcologist, Józef Sulimowicz (1913–1973). His linguistic informants were Karaims from Halych.