gaga

Meanings

1. 1
   adj

   informal and sometimes disparaging: mentally confused or physically feeble, especially through old age

   By then the elderly teacher had become forgetful and rather gaga.

2. 2
   adj

   informal: wildly enthusiastic or infatuated

   The audience went gaga over the singer's surprise appearance.

Borrowed from French gaga, a nursery-like or imitative formation meaning senile or foolish. English later developed the informal sense 'wildly enthusiastic or infatuated.'

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