derailed; derailing; derails
Definition of derail
1
: to cause to run off the rails
2a
: to obstruct the progress of : frustrate
security problems derailed the tour
b
: to upset the stability or composure of
divorce … can seriously derail an employee— Joanne Gordon
: to leave the rails
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Merriam-Webster unabridged
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Time Traveler for derail
The first known use of derail was in 1850
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