From Middle Dutch drōnen, ultimately perhaps from Proto-Germanic *drunjaną (“to drone, sound”), from Proto-Germanic *drunjuz (“a noise”), from Proto-Indo-European *dʰer- (“to grumble, roar”). Cognate with Low German drönen (“to drone, buzz, hum”), German dröhnen (“to roar, rumble, sound”), Danish drøne (“to peel, rumble, boom”), Swedish dröna (“to low, bellow, drone”), Icelandic drynja (“to roar”), Gothic [script?] (drunjus, “a sound”). More at drone.
- Plural form of dreun