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| | Online Etymology Dictionary |
 | | tronc "alms box in a church" (12c.), also "trunk of a tree, trunk of the human body," from L. truncus, originally "mutilated, cut off." The meaning "box, case" is likely to be from the notion of the body as the "case" of the organs. |
 | | Modern senses are figurative, either representing the balk as a hindrance or obstruction (e.g., of horses, "to stop short before an obstacle," recorded from 1481), or from the verb sense of "to miss or omit intentionally" (attested by 1484) as a lazy or incompetent plowman would in making balks. |
 | | Steamboat is from 1787; steam-engine is from 1751; steamer is 1814 in the cookery sense, 1825 as "a vessel propelled by steam," hence steamer trunk (1885), one that carries the essentials for a voyage. |
| www.etymonline.com /index.php?search=trunk&searchmode=phrase (1877 words) |
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