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lumbo-

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  1. a combining form meaning “loin,” used in the formation of compound words: lumbosacral.
Also especially before a vowel, lumb-.

Origin of lumbo-

combining form representing Latin lumbus loin; see -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Word Origin and History for lumbo-

word-forming element meaning "loin, loins," from comb. form of Latin lumbus (see lumbago).

Online Etymology Dictionary, © 2010 Douglas Harper