To increase; enlarge in size or extent; swell: as, to augment an army by reinforcement; impatience augments an evil.
In grammar, to add an augment to.
In heraldry, to make an honorable addition to, as a coat of arms.
To become greater in size, amount, degree, etc.; increase; grow larger.
noun.
Increase; enlargement by addition; augmentation.
noun.
In grammar, an addition at the beginning of certain past indicative tenses of the verb in a part of the Indo-European languages.
noun.
In pathology, the period of a fever between its commencement and its height.