- niggerhead (n.)
[niggerhead 词源字典]
- from nigger + head. A term used formerly in U.S. of various things, such as "cheap tobacco" (1843), "protruding root mass in a swamp" (1859), a type of cactus (1877), and the black-eyed susan (1893). Variant negro-head attested from 1781.[niggerhead etymology, niggerhead origin, 英语词源]