Aper and Berserk

Aper noun - A person who adopts the appearance or behavior of another especially in an obvious way.

Berserk and aper are semantically related. in crazy topic. In some cases you can use "Berserk" instead an adjective "Aper", when it comes to topics like mentally strange.

Berserk adjective - Frenzied as if possessed by a demon.

Aper and berserk are semantically related. Sometimes you can replace term "Aper" with "Berserk", this adjectives are similar.