MP2 edit

Arch

Chief, leader, or ruler

Crypt

Mysterious; hidden; puzzling

Ego

Self

Psych

Mind, soul, spirit

Morph

Form or Structure

Nomen/nomin/nom

Name

Culp

Guilt

Arch Enemy

A principal enemy

Cryptic

Meant to be puzzling or mysterious

Egocentric

Overly concerned with oneself

Amorphous

Having no fixed form

Misnomer

A wrong, or unsuitable name

Culpable

Deserving Blame