Webster’s Revised Unabridged Dictionary · 1913
Murmurous
Mur′mur·ous (·ŭs), a. [Cf. L. murmuriosus, OF. murmuros.] Attended with murmurs; exciting murmurs or complaint; murmuring. [Archaic or Poetic]
The lime, a summer home of murmurous wings. Tennyson.