transitive verb

1. to make greater, as in size, quantity, or strength; enlarge
2. to add an augment to

Etymology: ME augmenten < OFr augmenter < LL augmentare < augmentum, an increase < L augere, to increase: see wax

intransitive verb

noun

1. Obsolete an increase
2. Gram. a prefixed vowel or a lengthening or diphthongization of the initial vowel to show past time in Greek and Sanskrit verbs