From ܡܸܢܝܵܢܵܐ (minyānā, “number”) + -ܝܐ (-āyā, the attributive adjective ending).
ܡܸܢܝܵܢܵܝܵܐ • (minyānāyā) (feminine ܡܸܢܝܵܢܵܝܬܵܐ (minyānāytā), plural ܡܸܢܝܵܢܵܝܹ̈ܐ (minyānāyē))