instanter

adverb
in·stan·ter | \in-ˈstan-tər \

Definition of instanter 

: at once

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Examples of instanter in a Sentence

as soon as I had called out that answer, I instanter knew that it was wrong

First Known Use of instanter

1688, in the meaning defined above

History and Etymology for instanter

Medieval Latin, from instant-, instans

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Time Traveler for instanter

The first known use of instanter was in 1688

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