One was hitting a rock with another rock and humming an incomprehensible baby hum.
The air was alive with the spirit of the place, fragrant and humid, and humming with energy.
So they spent eight years taking the humming economy they inherited and asphyxiating it.
When the economy is humming along nicely, few people consider the amount of trust involved in every transaction.
“Keep me coming, keep me going, keep me humming, keep me moaning,” she pleads in the chorus.
He clapped Vyse on the shoulder and turned away, humming a tune.
He fastens his collar with a safety-pin, humming an old song the while.
He saluted me with ironical politeness, and humming a tune, descended Mrs. Simons' staircase.
I could hear her humming some air as she bustled about with her unpacking.
There was not a breath of wind stirring and the only sounds they heard were the humming of insects and now and then a bird song.
late 14c., hommen "make a murmuring sound to cover embarrassment," later hummen "to buzz, drone" (early 15c.), probably of imitative origin. Sense of "sing with closed lips" is first attested late 15c.; that of "be busy and active" is 1884, perhaps on analogy of a beehive. Related: Hummed; humming. Humming-bird (1630s) so called from sound made by the rapid vibration of its wings.
There is a curious bird to see to, called a humming bird, no bigger then a great Beetle. [Thomas Morton, "New English Canaan," 1637]
mid-15c., from hum (v.).
A low, continuous murmur blended of many sounds.