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variant of lumbo- before a vowel: lumbar.
Test how much you really know about regular and irregular plural nouns with this quiz.
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Which of the following nouns has an irregular plural form?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022


What does lumb- mean?

Lumb– is a combining form used like a prefix meaning “loin.” Loin, frequently in the plural loins, refers to the part of the body above your hip and below the ribcage or around the groin. Lumb– is occasionally used in medical terms, especially in anatomy.

Lumb– comes from Latin lumbus, meaning “loin,” which is also the source of loin as well as technical terms such as lumbago, a type of pain in the lower back, and numbles, the innards of certain animals that are used for food.

What are variants of lumb-?

Lumb– is a variant of lumbo, which loses its –o– when combined with words or word elements beginning with vowels. Want to know more? Read our Words That Use article about lumbo-.

Examples of lumb-

A term that you may have come across that uses the form lumb– is lumbar, meaning “of or relating to the loin or loins.” Lumbar comes from Latin lumbāris, which features the equivalent of lumb– in that language.

Lumb– means “loin,” while the ar part of the word is used to form adjectives meaning “of the kind, pertaining to, having the form of character of,” from Latin –āris. Lumbar literally means “pertaining to the loin.”

What are some words that use the combining form lumb-?

What are some other forms that lumb– may be commonly confused with?

Not every word that begins with the exact letters lumb-, such as lumbrial or lumber, is necessarily using the combining form lumb– to denote “loin.” Learn why lumber means “wood” at our entry for the word.

Break it down!

Based on the meaning of lumb-, where in the body would you expect to find the lumbar nerve?

How to use lumb- in a sentence

  • Dr. Lumb said yes, a small community like Meadville could n't never offer nothin' like a addykit scope to a brain like Rufus's.

  • They need have no fear that they will be disappointed, for Mr. Lumb's zeal is based on knowledge.