'Endanger' definitions:

Definition of 'endanger'

verb

Pose a threat to; present a danger to; "The pollution is endangering the crops" [syn: endanger, jeopardize, jeopardise, menace, threaten, imperil, peril]

verb

Put in a dangerous, disadvantageous, or difficult position [syn: queer, expose, scupper, endanger, peril]

From: GCIDE

Endanger \En*dan"ger\, v. t. [imp. & p. p. Endangered; p. pr. & vb. n. Endangering.]
1. To put to hazard; to bring into danger or peril; to expose to loss or injury; as, to endanger life or peace. [1913 Webster]
All the other difficulties of his reign only exercised without endangering him. --Burke. [1913 Webster]
2. To incur the hazard of; to risk. [Obs.] [1913 Webster]
He that turneth the humors back . . . endangereth malign ulcers. --Bacon. [1913 Webster]