English

ahum

From a- + hum.

Formed from a- + hum

Proto-Indo-European *uds- ‘up, out’

Proto-Germanic *uz- ‘out-’

Proto-West Germanic *uʀ- ‘up, out, over’

English a-

Middle English hummen ‘to hum, buzz, drone, make a murmuring sound…’

English hum

Today it means

adj humming

Language periods are conventional ranges, not dates for this word.