The Collaborative International Dictionary
Fatling \Fat"ling\, n. [Fat + -ling.] A calf, lamb, kid, or other young animal fattened for slaughter; a fat animal; -- said of such animals as are used for food.
He sacrificed oxen and fatlings.
--2 Sam. vi.
13.
Douglas Harper's Etymology Dictionary
"lamb, kid, or other young animal fattened for slaughter," 1520s, from fat (n.) + -ling.
Wiktionary
n. A young animal (especially a calf or lamb) which has been fattened for slaughter.
Wikipedia
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Usage examples of "fatling".
His oxen and fatlings are killed, His wine is drawn, and His table furnished, and all things ready.
I will be lady of his herds And stoop to his degree, At home where kids and fatlings grow.