"endanger" in the verb sense
1. endanger, jeopardize, jeopardise, menace, threaten, imperil, peril
pose a threat to present a danger to
"The pollution is endangering the crops"
2. queer, expose, scupper, endanger, peril
put in a dangerous, disadvantageous, or difficult position
Source: WordNet® (An amazing lexical database of English)
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