Etymology
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byline (n.)
also by-line, 1926, "line giving the name of the writer of an article in a newspaper or magazine;" it typically reads BY ________. From by (prep.) + line (n.). As a verb by 1942. Related: Bylined.
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by-name (n.)
late 14c., "secondary name;" 1570s, "nickname," from by + name (n.).
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BYOB 
initialism (acronym) for "bring your own bottle" or "bring your own booze," by 1951.
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bypass (v.)
1823, "to pass by" (implied in bypassed), from the verbal phrase; see by + pass (v.). From 1928 as "to go round, avoid;" figurative use from 1941. Related: Bypassed; bypassing.
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bypass (n.)
also by-pass, 1848, "small pipe passing around a valve in a gasworks" (for a pilot light, etc.), from the verbal phrase; see by + pass (v.). First used 1922 for "road for the relief of congestion;" figurative sense is from 1928. The heart operation was first so called 1957.
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by-path (n.)
"side road," late 14c., from by + path.
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by-product (n.)
also byproduct, "secondary or additional product;" 1849, from by + product.
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byre (n.)
"cow-shed, shelter for cattle," Old English byre, perhaps related to bur "cottage, dwelling, house" (see bower).
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by-road (n.)
"side road," 1670s, from by + road.
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Byronic (adj.)

1823, pertaining to, characteristic of, or resembling British poet George Gordon, 6th Baron Byron (1788-1824) or his poetry.

Perfect she was, but as perfection is
  Insipid in this naughty world of ours,
Where our first parents never learn'd to kiss
  Till they were exiled from their earlier bowers,
Where all was peace, and innocence, and bliss
  (I wonder how they got through the twelve hours),
Don Jose like a lineal son of Eve,
  Went plucking various fruit without her leave.
[from "Don Juan"]
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