- fatten as a verb:
Make fat or plump.
Roget 734: prosper, thrive, flourish; be prosperous etc. adj.; drive a roaring trade, do a booming business; go on well, go on smoothly, go on swimmingly; sail before the wind, swim with the tide; run smooth, ... show more
Moby thesaurus: acculturate, add to, advance, aggrandize, aliment, ameliorate, amend, amplify, augment, batten, become overweight, better, bloom, blossom, boom, boost, breast-feed, breed, bring forward, broaden ... show more.
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