imperil

from WordNet (r) 3.0 (2006)

imperil
    v 1: pose a threat to; present a danger to; "The pollution is
         endangering the crops" [syn: {endanger}, {jeopardize},
         {jeopardise}, {menace}, {threaten}, {imperil}, {peril}]

from The Collaborative International Dictionary of English v.0.48

Imperil \Im*per"il\, v. t. [imp. & p. p. {Imperiled}or
   {Imperilled}; p. pr. & vb. n. {Imperiling} or {Imperilling}.]
   To bring into peril; to endanger.
   [1913 Webster]

[email protected]