1. (Verbal Adj.) Used after an expression of time to mean ‘at which time’ or ‘on which time’. যি সময়ত ।

English: when,
Assamese: যেতিক্ষণে, যেতিয়া, যেবে, যৈসানি,
Mising: dosem, iddom,
Nagamese: jetia, jitia, zetia

Related Idea:

a. Conjuction: while, dodeng, dosem, edi, katba...