Yes, erases is a Scrabble word!

Verb

1. Remove from memory or existence

2. Remove by or as if by rubbing or erasing

3. Wipe out digitally or magnetically recorded information

Noun

1. A period marked by distinctive character or reckoned from a fixed point or event

2. A major division of geological time; an era is usually divided into two or more periods

3. (baseball) a measure of a pitcher's effectiveness; calculated as the average number of earned runs allowed by the pitcher for every nine innings pitched