Be financially supported by, subsist on, as in His pension is too small to live on. [Mid-1600s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
How to use live on in a sentence
She's a widder lady with a nice little 'ouse at Bow, and plenty to live on-her 'usband having been a builder.Ship's Company, The Entire Collection | W.W. Jacobs