purtenance

pur·te·nance

 (pûr′tn-əns)
n. Obsolete
An animal's viscera or internal organs, especially the heart, liver, and lungs.

[Middle English pertenaunce, purtenaunce, adjunct, from Old French partenance, pertinence, from partenir, to pertain; see pertain.]

purtenance

(ˈpɜːtɪnəns)
n
(Anatomy) archaic the inner organs, viscera
[C14: from Old French pertinance something that belongs; see appurtenance]