τῶν γὰρ μετρίων πρῶτα μὲν εἰπεῖν τοὔνομα νικᾷ → the first mention of the word moderation wins the game (Euripides, Medea 125f.)
oscillation: Ar. and V. σάλος, ὁ.
of the earth (in an earthquake): P. and V. σεισμός, ὁ.