postfix
Post"fix, n.; pl. Postfixes. Etym: [Pref. post- + -fix, as in prefix: cf. F. postfixe.] (Gram.) Defn: A letter, syllable, or word, added to the end of another word; a suffix. Parkhurst. Post*fix", v. t. Defn: To annex; specifically (Gram.), to add or annex, as a letter, syllable, or word, to the end of another or principal word; to suffix. Parkhurst.