Purtenance - King James Dictionary

Animal intestines; inwards.

And they shall eat the flesh in that night, roast with fire, and unleavened bread; and with bitter herbs they shall eat it. Eat not of it raw, nor sodden at all with water, but roast with fire; his head with his legs, and with the PURTENANCE thereof. (-9)

Purtenance - Webster-1913

(n.) That which pertains or belongs to something; esp., the heard, liver, and lungs of an animal.