'Sleek' in the Bible

And lo, there came up out of the Nile seven [healthy] cows, sleek and handsome and fat; and they grazed in the reed grass [in a marshy pasture].

and seven fat, sleek and handsome cows came up out of the river, and they grazed in the reed grass [of a marshy pasture].

“But Jeshurun (Israel) became fat and kicked [at God].You became fat, thick, sleek, and obstinate!Then he abandoned God who had made him,And scorned the Rock of his salvation.

‘They are fat and they are sleek (prosperous),They excel in acts of wickedness;They do not plead the cause,The cause of the orphan, so that they [the wicked] may prosper,And they do not defend the rights of the poor.