madness
n.
late 14c., "insanity, dementia; rash or irrational conduct," from mad, adj. + -ness. Sense of "foolishness" is from early 15c.
| 词汇 | madness | 
| 词根词缀 | Online Etymology Dictionary madness n. late 14c., "insanity, dementia; rash or irrational conduct," from mad, adj. + -ness. Sense of "foolishness" is from early 15c. | 
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