FAT'TEN, verb transitive fat'n. 1. To make fat; to feed for slaughter; to make fleshy, or plump with fat. 2. To make fertile and fruitful; to enrich; as, to fatten land; to fatten fields with blood. 3. To feed grossly; to fill. FAT'TEN, verb intransitive fat'n. to grow fat or corpulent; to grow plump, thick or fleshy; to be pampered. And villains fatten with the brave man's labor. Tigers and wolves shall in the ocean breed. The whale and dolphin fatten on the mead.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI