lull into

Deceive into trustfulness, as in The steadily rising market lulled investors into a false sense of security. The earliest recorded version of this term referred to wine: “Fitter indeed to bring and lull men asleep in the bed of security” (Philemon Holland, Pliny's Historie of the World, 1601. Today it still often appears with the phrase a false sense of security.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.