Drain away and Going away

Drain away verb - To grow less in scope or intensity especially gradually.

Going away and drain away are semantically related In some cases you can use "Going away" instead a verb "Drain away".

Going away noun - The act of departing.

Drain away and going away are semantically related in recede topic. Sometimes you can use "Drain away" instead a verb "Going away", if it concerns topics such as withdraw.