You bettern't go outside without a jacket.

The weather today is betterish than yesterday.

She worked hard to improve her betterhood.

This is the bettermost pizza I've ever had!

He bettereth himself through hard work and determination.

She always tries to do her best and betterest in everything she does.

I think this shortcut is better'n the long way.

Betteridge's Law is a name for the alternative letter-case form of Betteridge's law.

He is a bettererer cook than his sister.

Bettership is the key to personal growth and success.