Aph/thong, n.

(ăf'-or ăp'-thŏng) (Synop., § 130), n. [Gr. ἀφθόγγος, from a priv. and φθόγγος, voice, sound, from φθέγγομαι, to sound.] A letter, or a combination of letters, which, in the customary pronunciation of a word, have no sound.

Focloir, or Dict. of the Hiberno-Celtic Language.