P. and V. φθόγγος, ὁ, V. βοή, ἡ, ἀϋτή, ἡ, αὐδή, ἡ, ἠχώ, ἡ, ἠχή, ἡ.
P. and V. φθέγγεσθαι, P. ἐπιφθέγγεσθαι (Xen.), V. κελαδεῖν; (Euripides, Phoenissae 1102).