[ ɔ:g'mɛnt ]
■ verb
1》 make greater by addition; increase.
2》 [as adjective ~ed ] Music denoting an interval which is one semitone greater than the corresponding major or perfect interval.
Derivatives
~er noun
Origin
ME: from OFr. ~er (v.), ~ (n.), or late L. ~are , from L. augere 'to increase'.