լսել (Armenian) comes from Old Armenian լսել, from Old Armenian լսեմ, from Old Armenian լուսեմ, from Old Armenian լուս-, from Proto-Indo-European ḱlu-n-s-, from Proto-Indo-European ḱlew-, from Proto-Indo-European ḱel- — to cover; to incline.
լսել (Armenian): to hear; to listen; to obey