1. A rheumatic affection of the muscles about the loins.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• lumbo,
• kumbago,
• pumbago,
• oumbago,
• lymbago,
• limbago,
• lumbagio,
• lumbagoi,
• lumabgo,
• lumbaggo,
• lumbagg,
• submago,
• lomgago,
• Lumbanus,
• lumbaros,
• Lumbargo,
• Lumbagoa,
• Limbargo,
• Lumbarg,
• Lomboago

The adjective form of the word "lumbago" is "lumbaginous".

The plural form of "lumbago" is still "lumbago" as it is an uncountable noun.

The singular form of the word "lumbago" is "lumbaginis".