- bumblebee (n.)
[bumblebee 词源字典]
- also bumble-bee, 1520s, replacing Middle English humbul-be (altered by association with Middle English bombeln "to boom, buzz," late 14c.); echoic, from PIE echoic root *kem "to hum."[bumblebee etymology, bumblebee origin, 英语词源]