Anus
From BiblePortal Wikipedia
Webster's Dictionary [1]
(n.) The posterior opening of the alimentary canal, through which the excrements are expelled.
Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]
( Ἀννιούθ v. r. Ἀννούς ), one of the Levites who expounded the law read by Ezra ( 1 Esdras 9:48); evidently the BANI (See Bani) of the genuine text ( Nehemiah 8:7).