Etymology
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hamburger (n.)

1610s, Hamburger "native of Hamburg." Also used of ships from Hamburg. From 1838 as a type of excellent black grape indigenous to Tyrolia; 1857 as a variety of hen.

The meat product was so called by 1880 (as hamburg steak); if it was named for the German city no certain connection has ever been put forth, and there may not be one unless it be that Hamburg was a major port of departure for German immigrants to United States. An 1809 account of life and manners in Iceland says meat smoked in the chimney there is referred to as Hamburg beef.

The meaning "a sandwich consisting of a bun and a patty of grilled hamburger meat" attested by 1909, short for hamburger sandwich (1902). Shortened form burger is attested from 1939; beefburger was attempted 1940, in an attempt to make the main ingredient more explicit, after the -burger had taken on a life of its own as a suffix (compare cheeseburger, attested by 1938).

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Hamiltonian 
1797, follower of (n.), or characteristic of (adj.), U.S. politician and statesman Alexander Hamilton (d. 1804).
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Hamite (n.)
1854, "a descendant of Biblical Ham" (see Hamitic), with -ite (1). Used in reference to Egyptian and other peoples of north and northeast Africa; but popularly, "a black African, a negro."
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Hamitic (adj.)
of or pertaining to the language group that includes ancient Egyptian, Berber, Galla, etc.; 1842, from Ham/Cham, name of the second son of Noah (Genesis ix.18-19), whose four sons were popularly believed to have populated Egypt and adjacent regions of Africa.
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hamlet (n.)
early 14c., from Old French hamelet "small village," diminutive of hamel "village," itself a diminutive of ham "village," from Frankish *haim or some other Germanic source, from Proto-Germanic *haimaz "home" (from PIE root *tkei- "to settle, dwell, be home"); for ending, see -let. Especially a village without a church.
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hammer (n.)

Old English hamor "hammer," from Proto-Germanic *hamaraz (source also of Old Saxon hamur, Middle Dutch, Dutch hamer, Old High German hamar, German Hammer). The Old Norse cognate hamarr meant "stone, crag" (it's common in English place names), and suggests an original sense of the Germanic words as "tool with a stone head," which would describe the first hammers. The Germanic words thus could be from a PIE *ka-mer-, with reversal of initial sounds, from PIE *akmen "stone, sharp stone used as a tool" (source also of Old Church Slavonic kamy, Russian kameni "stone"), from root *ak- "be sharp, rise (out) to a point, pierce."

As a part of a firearm, 1580s; as a part of a piano, 1774; as a small bone of the ear, 1610s. Figurative use of "aggressive and destructive foe" is late 14c., from similar use of French martel, Latin malleus. To go at it hammer and tongs "with great violence and vigor" (1708) is an image from blacksmithing (the tongs hold the metal and the hammer beats it). Hammer and sickle as an emblem of Soviet communism attested from 1921, symbolizing industrial and agricultural labor.

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hammer (v.)

late 14c., "deal blows with a hammer or axe;" mid-15c., "to produce (something) by blows with a hammer," from hammer (n.). Also sometimes in Middle English the verb to describe how Christ was crucified. Figurative meaning "work (something) out laboriously" recorded from 1580s. Meaning "beat or drive with or as if with a hammer" is from 1640s; that of "to defeat heavily" is from 1948. Old English had hamorian "to beat out, forge." Related: Hammered; hammering.

Crist, as he was ruthfully hamerd apon the croce, Songe to his fadire of heven.
["The Mirror of Man's Salvation," 15c.]
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hammered (adj.)
1530s, past-participle adjective from hammer (v.). As a slang synonym for "drunk," attested by 1986.
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hammerhead (adj.)

also hammer-head, 1560s, "head of a hammer," from hammer (n.) + head (n.). From 1796 (American English) in reference to a kind of shark, so called for its broad, transverse head. The animal is referred to as hammer-headed shark from 1752 and hammer-fish from 1745. The older name for it was balance-fish; there was a full specimen and a head of another under that name in the Royal Society Museum by 1681:

He hath his Name not unaptly from the ſhape of his Head, very different from that of all other Fiſhes, being ſpread out horizontally, like the Beam of a Balance; his eyes ſtanding at the two extremes, as the iron Hooks do at the end of the Beam. He grows sometimes to the length of four or five yards: but this is a young one. [Nehemiah Grew, M.D., "Catalogue & Deſcription Of the Natural and Artificial Rarities Belonging to the Royal Society And preſerved at Greſham Colledge. Whereunto is Subjoyned the Comparative Anatomy of Stomachs and Guts. By the ſame author" London, 1681 ]

Compare French requin marteau, Italian pesce martello, etc. The Greeks named it for the cross-bar of a yoke (zygon) and called it zygania. "According to Xenocrates, and to Philotinus ap. Galen vi. 727, it is tough and indigestible, but may be eaten pickled" [Thompson].

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hammock (n.)
type of hanging bed, 1650s, alteration of hamack, hamaca (1550s), from Spanish hamaca, from Arawakan (Haiti) word apparently meaning "fish nets" (compare Yukuna hamaca, Taino amaca). The forms of the word in Dutch (hangmat) and German (Hangmatte) were altered by folk-etymology as if it meant "hang-mat."
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