“ad fontes!”
literally (1845): an enclosure in which calves are isolated from their mothers until weaned—figuratively, humorously and offensively (1885): a girls’ boarding-school—similar to the use of ‘cow’ to derogatorily designate a girl or woman
Read More1809—U.S. nautical, obsolete: the two-fathom mark on a sounding-line—Samuel Langhorne Clemens chose it as his pen-name in 1863, but a pilot named Isaiah Sellers had first used it as his pen-name
Read MoreU.S.—used in reference to several muddy rivers, and, occasionally, to other waterbodies—originally (1890 to 1902) used in reference to the Missouri River
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broken English—UK, 1883—from ‘English As She is Spoke: or A Jest in Sober Earnest’ (London: Field & Tuer, 1883), title given to a book intended as a Portuguese-English conversational guide
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the origin of some famous catchphrases used in 19th-century advertising campaigns
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word histories 