From Longman Dictionary of Contemporary Englishlumbagolum‧ba‧go /lʌmˈbeɪɡəʊ $ -ɡoʊ/ noun [uncountable] MIpain in the lower part of the back
Examples from the Corpus
lumbago• Blood pressure and lumbago have left these shrimps - pink and puffed as a rowing eight, slumped over their needles.Origin lumbago (1600-1700) Latin lumbus; → LUMBAR 