অস্ত যা (Assamese) [ Roman: os.to ja]
    Contributed by: Probodh Borah (প্ৰবোধ বৰা) on 2010-09-04
    1. (Verb-Trans.) to descend or to go down and gradually disappear (The Sun of any such celestial body) ক্ৰমান্বয়ে তললৈ গৈ অদৃশ্য হোৱা