The Collaborative International Dictionary
Nihil debet
Nihil \Ni"hil\, n. [L.] Nothing.
Nihil album [L., white nothing] (Chem.), oxide of zinc. See under Zinc.
Nihil debet [L., he owes nothing] (Law), the general issue in certain actions of debt.
Nihil dicit [L., he says nothing] (Law), a declinature by
the defendant to plead or answer.
--Tomlins.
Wiktionary
nihil debet
n. (context legal English) The general issue in certain actions of debt.