imperil
1. [ verb ] pose a threat to; present a danger to
Synonyms: threaten endanger jeopardize menace jeopardise peril
Examples:

"The pollution is endangering the crops"

Related terms: exist hazard riskiness
Similar spelling:   imperial
  imperially
  improperly
  Imber
  improper
  imperious
  imperative
  imprint
  impersonal
  impurity
  imprison
  Imperato
  imperfect
  imbricate