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Denotation vs. Connotation

spelunk

[spi-luhngk] /spɪˈlʌŋk/
verb (used without object)
1.
to explore caves, especially as a hobby.
Origin of spelunk
back formation from spelunker, spelunking

spelunker

[spi-luhng-ker] /spɪˈlʌŋ kər/
noun
1.
a person who explores caves, especially as a hobby.
Origin
1940-45; < Latin spēlunc(a) cave (≪ Greek spêlynx, stem spēlyng-, akin to spḗlaion; cf. spelaean) + -er1
Related forms
spelunking, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for spelunking

spelunker

/spɪˈlʌŋkə/
noun
1.
a person whose hobby is the exploration and study of caves
Derived Forms
spelunking, noun
Word Origin
C20: from Latin spēlunca, from Greek spēlunx a cave
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for spelunking

spelunker

n.

"a cave bug; one who explores caves as a hobby," 1942, agent noun formed from obsolete spelunk "cave, cavern."

spelunk

n.

"cave, cavern," c.1300, from Old French spelonque or directly from Latin spelunca "a cave, cavern, grotto," from Greek spelynx (genitive spelyngos). An adjective, speluncar "of a cave" is recorded from 1855.

Online Etymology Dictionary, © 2010 Douglas Harper
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