Dictionary.com Word Of The Day
MARCH 26, 2017
orogeny,
noun [aw-ROJ-uh-nee, oh-ROJ-]
1. Geology. the process of mountain making or upheaval. Also called
orogenesis.
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Tweto, the foremost expert on the Laramide orogeny believes the New
Rockies began to emerge 72,000,000 years ago, with the process
terminating about 43,000,000 years ago.
-- James A. Michener, Centennial, 1974 ORIGINThe -geny of orogeny is
easy to recognize and common, meaning âproduction, formation,â
related to genesis, another Greek noun. The oro- part is not as common
or its meaning so obvious. It comes from the Greek noun óros (stem
ore-) âmountain, hill,â from a complicated Proto-Indo-European root
er-, or-, r- (with other variants) "to move, rise, excite." This root
is the source of English are (of the verb to be), and the Latin verb
orÄ«rÄ« âto arise, be born,â which has the present participle stem
orient- ârising, rising sun, east.â Orogeny entered English in the
19th century.