Definitions from Wiktionary ( )

▸ verb:  (transitive) To increase; to make larger or supplement.
▸ verb:  (intransitive, reflexive) To grow; to increase; to become greater.
▸ verb:  (music) To slow the tempo or meter, e.g. for a dramatic or stately passage.
▸ verb:  (music) To increase an interval, especially the largest interval in a triad, by a half step (chromatic semitone).
▸ verb:  (grammar, transitive) To add an augment to.
▸ noun:  (grammar) A grammatical prefix
▸ noun:  (Indo-European languages) In some languages, a prefix *é- (अ- (a-) in Sanskrit, ἐ- (e-) in Greek) indicating a past tense of a verb.
▸ noun:  (Celtic languages) Especially Old Irish, a preverb, usually ro-, used to give a verb a resultative or potential meaning.
▸ noun:  (Bantu languages) In some languages, an additional vowel prepended to the noun prefix.
▸ noun:  An increase.

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