If possible, the ship's position must be known accurately at any time of day or night for, in case of an emergency, the lives of all on board may be Imperilled by inaccurate knowledge of your whereabouts.
"Lectures in Navigation"
Ernest Gallaudet Draper
After dinner Uncle Peter forced one of his black cigars upon me and Imperilled all the structure of good feeling the dinner had built up in me.
"I Walked in Arden"
Jack Crawford
Upon the Imperilled line, suspended high, A silver perch!
"George Eliot"
Mathilde Blind