Here is the meaning of the word, PET

Pet ( a. ) - Petted; indulged; admired; cherished; as, a pet child; a pet lamb; a pet theory.
Pet ( n. ) - A cade lamb; a lamb brought up by hand.
Pet ( n. ) - A slight fit of peevishness or fretfulness.
Pet ( n. ) - Any person or animal especially cherished and indulged; a fondling; a darling; often, a favorite child.
Pet ( v. i. ) - To be a pet.
Pet ( v. t. ) - To treat as a pet; to fondle; to indulge; as, she was petted and spoiled.