Third-person singular simple present indicative form of renege

(military) A strict disciplinarian. / (figuratively) Anyone who lays stress on a rigid adherence to the details of discipline, or to forms and fixed methods or rules.

Oscarella carmela, a species of sponge.

(idiomatic, intransitive) To act with reserve; to contain one's full measure or power. / (idiomatic, transitive) To contain; stop.