Idioms and Phrases with put at someone's disposal
put at someone's disposal
Allow one to use, as in They put their car at our disposal for our entire stay. This idiom employs disposal in the sense of “the liberty or power to use something,” a usage dating from the early-1600s.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.