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leu (n.)monetary unit of Romania, introduced 1867, literally "lion." Monetary names in the Balkans often translate as "lion" because Dutch gold coins stamped with lions circulated widely in the region in the 17c. and the word for "lion" came to be a word for "money" in some languages there.
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REM (n.1)
Related entries & more also R.E.M., rem, unit for measuring ionizing radiation, 1947, acronym of roentgen equivalent man.
choo-choo (n.)Child's name for "steam-engine locomotive," 1895, echoic (choo-choo cars is attested from 1891).
Related entries & more Bolivia South American republic, founded 1825, named for Simon Bolivar (1783-1830), statesman and soldier.
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SNCF French national railway, 1949, initialism (acronym) for Société Nationale des Chemins de Fer.
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