semelfactive

adjective
sem·​el·​fac·​tive | \ ¦seməl¦faktiv\

Definition of semelfactive

of a verb form or aspect
: expressing action as single in its occurrence without repetition or continuation : instantaneous, momentary

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History and Etymology for semelfactive

Latin semel once (akin to Latin simul together, at the same time) + English factive

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