adv. phr. [A prep.1 in + HUM.] In a hum, humming.
1859. Coleman, Woodl. Heaths (1866), 120. The bright air is … a-hum with the song of the bee and other busy insects.
adv. phr. [A prep.1 in + HUM.] In a hum, humming.
1859. Coleman, Woodl. Heaths (1866), 120. The bright air is … a-hum with the song of the bee and other busy insects.
