From ܫܸܡܚܵܐ (šimḥā, “foul smell”) + -ܢܐ (-ānā, the adjectival ending).
ܫܸܡܚܵܢܵܐ • (šimḥānā) (feminine ܫܸܡܚܵܢܝܼܬ݂ܵܐ (šimḥānīṯā), plural ܫܸܡܚܵܢܹ̈ܐ (šimḥānē))