augment
verb
• make (something) greater by adding to it; increase.
• "he augmented his summer income by painting houses"
Similar:
increase,
make larger,
make bigger,
make greater,
add to,
supplement,
build up,
enlarge,
expand,
extend,
raise,
multiply,
elevate,
swell,
inflate,
magnify,
intensify,
amplify,
heighten,
escalate,
worsen,
make worse,
exacerbate,
aggravate,
inflame,
compound,
reinforce,
improve,
make better,
boost,
ameliorate,
enhance,
upgrade,
top up,
up,
jack up,
hike up,
hike,
bump up,
crank up,
step up,
augment
noun
• a vowel prefixed to past tenses of verbs in Greek and certain other Indo-European languages.
Origin:
late Middle English: from Old French augmenter (verb), augment (noun), or late Latin augmentare, from Latin augere ‘to increase’.