(transitive, intransitive, medicine) To consume a substance as a medication without the advice of a physician, in order to treat a real or imagined condition.

Regulated by oneself or itself.

Pride in one's own character, abilities, or reputation; self-esteem.

The act of devoting one's self; willingness to sacrifice one's own interests or happiness for the sake of others; self-sacrifice.

Conviction proceeding from one's own consciousness, knowledge, or confession.

Slaughtered or killed by oneself.

Action by or originating in one's self or itself.

Motion given by inherent powers, without external impulse.

Confiding in one's own judgment or powers; self-confident.

Valuing one's own opinion highly.