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Date: 1400-1500
Language: Old French
Origin: prolonguer, from Late Latin prolongare, from Latin longus 'long'

prolong

verb
     
pro‧long [transitive]
1 to deliberately make something such as a feeling or activity last longer [= lengthen]:
I was trying to think of some way to prolong the conversation.
2

prolong the agony

informal to make an unpleasant or anxious time last longer, especially when people are waiting for news:
There's no point in prolonging the agony any longer.

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