Etymology
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Teddy 
pet form of masc. proper names Edward, Edmund, and Theodore, with -y (3). Meaning "women's undergarment" (with lower-case t-) is recorded from 1924, of unknown origin, perhaps from some fancied resemblance to a teddy bear (q.v.), a theory that dates to 1929. In British slang phrase teddy boy (1954) it is short for Edward, from the preference of such youths for Edwardian styles (1901-10). Teddies (probably from Teddy Roosevelt) was one of the names given to U.S. troops in France in 1917.
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Orion 

conspicuous constellation containing seven bright starts in a distinctive pattern, late 14c., orioun, ultimately from Greek Oriōn, Oariōn, name of a giant hunter in Greek mythology, loved by Aurora, slain by Artemis, a name of unknown origin, though some speculate on Akkadian Uru-anna "the Light of Heaven."

Another Greek name for the constellation was Kandaon, a title of Ares, god of war, and the star pattern is represented in many cultures as a giant (such as Old Irish Caomai "the Armed King," Old Norse Orwandil, Old Saxon Ebuðrung). A Mesopotamian text from 1700 B.C.E. calls it The True Shepherd of Anu. The Orionid meteors, which appear to radiate from the constellation, are so called by 1876.

I this day discovered a new particular of my own ignorance of things which I ought to have known these thirty years — One clear morning about a fortnight since I remarked from my bed-chamber window a certain group of stars forming a Constellation which I had not before observed and of which I knew not the name — I marked down their positions on a slip of paper with a view to remember them hereafter and to ascertain what they were — This day on looking into the Abridgment of La Lande's Astronomy, one of the first figures that struck my eye in the plates was that identical Constellation — It was Orion — That I should have lived nearly fifty years without knowing him, shews too clearly what sort of observer I have been. [John Quincy Adams, diary entry for Nov. 18, 1813, St. Petersburg, Russia]
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