FATTEN
fatten, fat, flesh out, fill out, plump, plump out, fatten out, fatten up
(verb) make fat or plump; “We will plump out that poor starving child”
Source: WordNet® 3.1
Etymology
Verb
fatten (third-person singular simple present fattens, present participle fattening, simple past and past participle fattened)
(transitive) To cause (a person or animal) to be fat or fatter.
(intransitive, of a person or animal) To become fat or fatter.
Synonyms: gain weight, put on weight
(transitive) To make thick or thicker (something containing paper, often money).
(intransitive) To become thick or thicker.
(transitive) To make (soil) fertile and fruitful.
Synonym: enrich
(intransitive) To become fertile and fruitful.
Source: Wiktionary
Fat"ten, v. t. [imp. & p. p. Fattened; p. pr. & vb. n. Fattining.]
Etym: [See Fat, v. t.]
1. To make fat; to feed for slaughter; to make fleshy or plump with
fat; to fill full; to fat.
2. To make fertile and fruitful; to enrich; as, to fatten land; to
fatten fields with blood. Dryden.
Fat"ten, v. i.
Definition: To grow fat or corpulent; to grow plump, thick, or fleshy; to
be pampered.
And villains fatten with the brave man's labor. Otway.
Source: Webster’s Unabridged Dictionary 1913 Edition