From լսեմ (lsem) + -ու (-u).
լսու • (lsu)
- obedient
- Ačaṙean, Hračʻeay (1971–1979) “լսել”, in Hayerēn armatakan baṙaran [Armenian Etymological Dictionary] (in Armenian), 2nd edition, a reprint of the original 1926–1935 seven-volume edition, Yerevan: University Press