bladder: [OE] Old English bl?dre came from a hypothetical West and North Germanic *bl?drōn, a derivative of the stem *bl?-, from which we get blow. The name perhaps comes from the bladder’s capacity for inflation. It was originally, and for a long time exclusively, applied to the urinary bladder. => blow
bladder (n.)
Old English bl?dre (West Saxon), bledre (Anglian) "(urinary) bladder," also "blister, pimple," from Proto-Germanic *blaedron (cognates: Old Norse blaera, Old Saxon bladara, Old High German blattara, German Blatter, Dutch blaar), from PIE *bhle- "to blow" (see blast). Extended senses from early 13c. from animal bladders used for buoyancy, storage, etc.
雙語例句
1. The sky, swollen like a black bladder, rumbled and crackled.