lumbo-
1.
a combining form meaning “loin,” used in the formation of compound words:
lumbosacral.
Also,
especially before a vowel,
lumb-
.
Origin
combining form representing
Latin
lumbus
loin
; see
-o-
Word Origin and History for
lumbo-
word-forming element meaning "loin, loins," from comb. form of Latin
lumbus
(see
lumbago
).