Hūm1, v. i.
v. i. [imp. & p. p. HUMMED; p. pr. & vb. n. HUMMING.] [Ger. hummen, humsen, D. hommelen.]
Sense 1. To make a dull, prolonged, nasal sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums.
Sense 2. To make a drawling sound through the nose in the process of speaking, from embarrassment or affectation. “He hummed and hawed.” Hudibras.
Sense 3. To make as if speaking or praying, but without opening the mouth, or articulating; to mumble; to drone.
The cloudy messenger turns me his back, And hums. Shak.
Sense 4. To make a dull, heavy noise like a drone.
Still humming on, their drowsy course they took. Pope.