Fatten \Fat"ten\, v. t. [imp. & p. p. Fattened; p. pr. & vb. n. Fattining.]

[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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Fatten \Fat"ten\, v. i. 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 Revised Unabridged Dictionary (1913)