hazel (n.) Look up hazel at Dictionary.com
Old English hæsl, hæsel, from Proto-Germanic *hasalaz (cognates: Old Norse hasl, Middle Dutch hasel, German hasel), from PIE *koselo- "hazel" (cognates: Latin corulus, Old Irish coll "hazel"). Shakespeare ("Romeo and Juliet," 1592) was first to use it (in print) in the sense of "reddish-brown color of eyes" (in reference to the color of ripe hazel-nuts), when Mercutio accuses Benvolio of being testy with:
Thou wilt quarrell with a man for cracking Nuts, hauing no reason, but because thou hast hasell eyes.
hazelnut (n.) Look up hazelnut at Dictionary.com
Old English hæselhnutu; see hazel + nut. Similar formation in Dutch hazelnoot, Old High German hasalnuz, German Haselnuss.
hazing (n.) Look up hazing at Dictionary.com
brutal initiation of college freshmen, 1848, said to be a Harvard word ("This word is used at Harvard College, to express the treatment which Freshmen sometimes receive from the higher classes, and especially from the Sophomores" -- "Collection of College Words and Customs," Boston, 1851); see haze (v.).
hazmat Look up hazmat at Dictionary.com
also HAZMAT, 1977, condensed from hazardous material(s).
hazy (adj.) Look up hazy at Dictionary.com
1620s, hawsey, nautical, of unknown origin. Some connect it with German hase "hare," an animal which plays an important part in Germanic folklore, with many supernatural and unlucky aspects in medieval times (among the superstitions: a dead hare should not be brought aboard a fishing ship, and the word hare should not be spoken at sea). Another suggestion is Old English hasu, haswe "gray." Related: Hazily; haziness.
he (pron.) Look up he at Dictionary.com
Old English he (see paradigm of Old English third person pronoun below), from Proto-Germanic *hi- (cognates: Old Saxon, Old Frisian, Middle Dutch he, hi, Dutch hy, Old High German he), from PIE *ki-, variant of *ko-, the "this, here" (as opposed to "that, there") root (cognates: Hittite ki "this," Greek ekeinos "that person," Old Church Slavonic si, Lithuanian šis "this"), and thus the source of the third person pronouns in Old English. The feminine, hio, was replaced in early Middle English by forms from other stems (see she), while the h- wore off Old English neuter hit to make modern it. The Proto-Germanic root also is the source of the first element in German heute "today," literally "the day" (compare Old English heodæg).

- masc. neut. fem. (all genders)
nom. he hit heo, hio hie, hi
acc. hine hit hie, hi hie, hi
gen. his his hire hira, heora
dat. him him hire him, heom

Pleonastic use with the noun ("Mistah Kurtz, he dead") is attested from late Old English. With animal words, meaning "male" (he-goat, etc.) from c. 1300.
he-he Look up he-he at Dictionary.com
imitative of laughter, Old English.
Ha ha and he he getacniað hlehter on leden and on englisc. [Ælfric, "Grammar," c. 1000]
he-man (n.) Look up he-man at Dictionary.com
"especially masculine fellow," 1832, originally among U.S. pioneers, from he + man (n.).
head (n.) Look up head at Dictionary.com
Old English heafod "top of the body," also "upper end of a slope," also "chief person, leader, ruler; capital city," from Proto-Germanic *haubudam (cognates: Old Saxon hobid, Old Norse hofuð, Old Frisian haved, Middle Dutch hovet, Dutch hoofd, Old High German houbit, German Haupt, Gothic haubiþ "head"), from PIE *kaput- "head" (cognates: Sanskrit kaput-, Latin caput "head").

Modern spelling is early 15c., representing what was then a long vowel (as in heat) and remained after pronunciation shifted. Of rounded tops of plants from late 14c. Meaning "origin of a river" is mid-14c. Meaning "obverse of a coin" (the side with the portrait) is from 1680s; meaning "foam on a mug of beer" is first attested 1540s; meaning "toilet" is from 1748, based on location of crew toilet in the bow (or head) of a ship. Synechdochic use for "person" (as in head count) is first attested late 13c.; of cattle, etc., in this sense from 1510s. As a height measure of persons, from c. 1300. Meaning "drug addict" (usually in a compound with the preferred drug as the first element) is from 1911.

To give head "perform fellatio" is from 1950s. Phrase heads will roll "people will be punished" (1930) translates Adolf Hitler. Head case "eccentric or insane person" is from 1979. Head game "mental manipulation" attested by 1972. To have (one's) head up (one's) ass is attested by 1978.
head (v.) Look up head at Dictionary.com
"to be at the head or in the lead," c. 1200, from head (n.). Meaning "to direct the head (toward)" is from c. 1600. Related: headed, heading. The earliest use of the word as a verb meant "behead" (Old English heafdian). Verbal phrase head up "supervise, direct" is attested by 1930.
head (adj.) Look up head at Dictionary.com
"most important, principal, leading," c. 1200, from head (n.). Old English heafod was used in this sense in compounds.
head over heels (adv.) Look up head over heels at Dictionary.com
1771, "a curious perversion" [Weekley] of Middle English heels over head. Head (n.) and heels have been paired in alliterative phrases since at least c. 1400, and the whole image also was in classical Latin (per caput pedesque ire).
head shop (n.) Look up head shop at Dictionary.com
emporium for stoner gear, by 1969 (noted in 1966 as the name of a specific shop in New York City selling psychedelic stuff), from head (n.) in the drug sense.
head-hunter (n.) Look up head-hunter at Dictionary.com
1853, from head (n.) + hunter. Employment sense attested from 1961.
head-on (adv.) Look up head-on at Dictionary.com
1840, from head (n.) + on.
head-shrinker (n.) Look up head-shrinker at Dictionary.com
also headshrinker, 1926 in literal sense, from head (n.) + agent noun from shrink (v.); as U.S. slang for "psychologist," by 1950.
headache (n.) Look up headache at Dictionary.com
Old English heafodece; see head (n.) + ache (n.). Colloquial sense of "troublesome problem" is first recorded 1934.
headband (n.) Look up headband at Dictionary.com
1530s, from head (n.) + band (n.1).
headbanger (n.) Look up headbanger at Dictionary.com
"devotee of heavy metal music," 1984, from head (n.) + agent noun from bang (v.).
headbutt Look up headbutt at Dictionary.com
also head-butt, by 1946 (v.), from head (n.) + butt (v.). As a noun, recorded by 1967.
headdress (n.) Look up headdress at Dictionary.com
also head-dress, 1703, from head (n.) + dress (n.) in the older, more general, sense.
header (n.) Look up header at Dictionary.com
"head-first dive or plunge," 1849, from head (n.); as a type of pass or shot with the head in soccer, by 1906.
heading (n.) Look up heading at Dictionary.com
c. 1300, "a beheading," from present participle of head (v.). Meaning "advancing in a certain direction" is from c. 1600. Meaning "title at the head of a portion of text" is from 1849.
headland (n.) Look up headland at Dictionary.com
Old English heafod lond "strip of land left unplowed at the edge of a field to leave room for the plow to turn," naturally identified with boundaries; see head (n.) + land (n.). Meaning "high cape, promontory" is from 1520s.
headless (adj.) Look up headless at Dictionary.com
late Old English, heafedleas; see head (n.) + -less. Late 14c. as "rulerless, lacking a leader." Related: Headlessly; headlessness.
headlight (n.) Look up headlight at Dictionary.com
1861, originally of ships and locomotives, from head (n.) + light (n.). Related: Headlights, which, as slang for "a woman's breasts," is from 1940s.
headline (n.) Look up headline at Dictionary.com
1670s, from head (n.) in sense "heading of a book or chapter" (c. 1200) + line (n.). Originally a printers' term for the line at the top of a page containing the title and page number; used of newspapers from 1890, and transferred unthinkingly to broadcast media. Headlinese "language peculiar to headlines" is from 1927. Headlines "important news" is from 1908.
headliner (n.) Look up headliner at Dictionary.com
1891, "one who writes newspaper headlines;" 1896 as "one who stars in a performance;" from headline + -er (1).
headlong (adv.) Look up headlong at Dictionary.com
late 14c., headling, also headlings, "headfirst (downward); headlong (forward); without thinking, hastily," from hed "head" (see head (n.)) + adverbial suffix -ling. Altered by c. 1400 to conform with sidelong, etc. Its true companions are now mostly obsolete: darkling, backling, flatling, etc.
headman (n.) Look up headman at Dictionary.com
"chief man, leader," Old English heafodman; see head (adj.) + man (n.). Cognate with German Hauptmann "captain."
headmaster (n.) Look up headmaster at Dictionary.com
1570s, from head (adj.) + master (n.).
headphone (n.) Look up headphone at Dictionary.com
1914, from head (n.) + second element extracted from telephone.
headquarters (n.) Look up headquarters at Dictionary.com
1640s, from head (adj.) + quarters. Headquarter as a verb is recorded from 1903.
headroom (n.) Look up headroom at Dictionary.com
"space above the head," 1851, from head (n.) + room (n.).
heads-up Look up heads-up at Dictionary.com
"clever, alert," 1952, from warning cry "heads up!" (i.e. "look up!"), attested by 1939.
headsman (n.) Look up headsman at Dictionary.com
"executioner," c. 1600, from genitive of head (n.) + man (n.). Used earlier in sense "chief, leader" (c. 1400).
headstone (n.) Look up headstone at Dictionary.com
c. 1400, "cornerstone," from head (adj.) + stone (n.). Meaning "upright stone at the head of a grave" is 1775, from head (n.).
headstrong (adj.) Look up headstrong at Dictionary.com
"determined to have one's way," late 14c., from head (n.) + strong. Compare Old English heafodbald "impudent," literally "head-bold." Strongheaded is attested from c. 1600.
headwaters (n.) Look up headwaters at Dictionary.com
1530s; see head (n.) + water (n.1).
headway (n.) Look up headway at Dictionary.com
c. 1300, "main road, highway," from Old English heafodweg; see head (adj.) + way (n.). Sense of "motion forward" first attested 1748, short for ahead-way; ultimately nautical (see leeway).
heady (adj.) Look up heady at Dictionary.com
late 14c., "headstrong, hasty, impetuous," from head (n.) + adj. suffix -y (2). First recorded 1570s in sense of "apt to go to the head."
heal (v.) Look up heal at Dictionary.com
Old English hælan "cure; save; make whole, sound and well," from Proto-Germanic *hailjan (cognates: Old Saxon helian, Old Norse heila, Old Frisian hela, Dutch helen, German heilen, Gothic ga-hailjan "to heal, cure"), literally "to make whole" (see health). Related: Healed; healing.
heal-all (n.) Look up heal-all at Dictionary.com
native word for panacea, 1570s, from heal + all; applied to various plants since 1853.
healer (n.) Look up healer at Dictionary.com
late Old English, "one who heals," especially "savior, Jesus," agent noun from heal (v.). As "a curative medicine" from late 14c.
healing (n.) Look up healing at Dictionary.com
"restoration to health," Old English hæling; see heal. Figurative sense of "restoration of wholeness" is from early 13c.; meaning "touch that cures" is from 1670s.
health (n.) Look up health at Dictionary.com
Old English hælþ "wholeness, a being whole, sound or well," from Proto-Germanic *hailitho, from PIE *kailo- "whole, uninjured, of good omen" (cognates: Old English hal "hale, whole;" Old Norse heill "healthy;" Old English halig, Old Norse helge "holy, sacred;" Old English hælan "to heal"). With Proto-Germanic abstract noun suffix *-itho (see -th (2)). Of physical health in Middle English, but also "prosperity, happiness, welfare; preservation, safety."
healthcare (n.) Look up healthcare at Dictionary.com
also health care, 1940, U.S. government-ese, from health + care (n.).
healthful (adj.) Look up healthful at Dictionary.com
late 14c., "wholesome, curative, saving," from health + -ful. Related: Healthfully; healthfulness.
healthily (adv.) Look up healthily at Dictionary.com
1630s, from healthy + -ly (2).
healthy (adj.) Look up healthy at Dictionary.com
1550s, from health + -y (2). Slightly earlier in the same sense was healthsome (1530s). Related: Healthiness.
It is wrong to say that certain articles of food are healthy or unhealthy. Wholesome and unwholesome are the right words. A pig may be healthy or unhealthy while alive; but after he is killed and becomes pork, he can enjoy no health, and suffer no sickness. [Eliza Leslie, "Miss Leslie's Behaviour Book," Philadelphia, 1839]