Etymology
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go for (v.)
1550s, "be taken or regarded as," also "be in favor of," from go (v.) + for (adv.). Meaning "attack, assail" is from 1880. Go for broke is from 1951, American English colloquial.
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head-butt (n.)
also headbutt, 1935, from head (n.) + butt (n.5). As a verb, by 1946. Related: Head-butting (1917 as a noun).
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match-head (n.)

"piece of some chemical composition with which a match is tipped," 1860, from match (n.1) + head (n.).

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spear-head (n.)
c. 1400, from spear (n.1) + head (n.). Figurative sense of "leading element" (of an attack, movement, etc.) is attested from 1893; the verb in this sense is recorded from 1938. Related: Spearheaded; spearheading.
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head-shrinker (n.)
also headshrinker, 1926 in literal sense, from head (n.) + agent noun from shrink (v.); as U.S. slang for "psychologist," by 1950.
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raw-head (n.)
also rawhead, name of a nursery specter or "scare-child" (usually coupled with bloody-bones), early 16c., from raw (adj.) + head (n.).
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ass-head (n.)
also asshead, "stupid person, dullard," late 15c., asse hede, from ass (n.1) + head (n.). Related: Ass-headed.
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fiddle-head (n.)

also fiddlehead, "one with a head as hollow as a fiddle," 1854 (fiddleheaded), from fiddle (n.) + head (n.). As a name for young fern fronds, from 1877, from resemblance to a violin's scroll. Earliest use is nautical, "carved ornamental work at the bow of a ship in the form of a scroll or volute" (1799).

There are three kinds of heads,—1st The Figure-head is one on which is placed the figure of a man, woman, or the like, &c.; 2d, The Billet-head, or Scroll-head is one finished with two scrolls or volutes ...; and 3d, the Fiddle-head, which is finished with only one scroll or volute, having the spirals turning inwards to the vessel. [Peter Hedderwick, "Treatise on Marine Architecture," Edinburgh, 1830]
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