Daffy and Potty

Daffy adjective - Having or showing a very abnormal or sick state of mind.

Potty and daffy are semantically related (British) In some cases you can use "Potty" instead an adjective "Daffy".

Potty adjective - Being or characteristic of a person who has an offensive air of superiority and tends to ignore or disdain anyone regarded as inferior.

Daffy and potty are semantically related in deranged topic. Sometimes you can use "Daffy" instead an adjective "Potty".