英语词汇bum的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	bum
词根词缀	词源： 1. bum (1) "buttocks," late 14c., "probably onomatopoeic, to be compared with other words of similar sound and with the general sense of 'protuberance, swelling.' " [OED] 2. bum (2) "dissolute loafer, tramp," 1864, Amer.Eng., from bummer "loafer, idle person" (1855), possibly an extension of the British word for "backside" (similar development took place in Scotland, 1540), but more prob. from Ger. slang bummler "loafer," from bummeln "go slowly, waste time." Bum first appears in a Ger.-Amer. context, and bummer was popular in the slang of the North's army in Amer. Civil War (as many as 216,000 Ger. immigrants in the ranks). Bum's rush "forcible ejection" first recorded 1910. Bummer "bad experience" is 1960s slang.
随便看	diminuendo diminution diminutive dimmer dimple dim sum dimwit din dine on site onslaught Ontario on the analogy of on the average on the basis of on the contrary on the grounds of on the lips of on the nail on the point of on the principle of on the quiet on the road on the run on the side

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