γυιόδαμος
From LSJ
ἐὰν οὖν τὰ μαλακὰ σκληρῶς καὶ τὰ σκληρὰ μαλακῶς λέγηται, πιθανὸν γίγνεται → but if, as a result, gentle things are said harshly and harsh things gently, the result is unpersuasive
English (LSJ)
η, ον, taming limbs, conquering, ἐν γυιοδάμαις… χερσίν Pi.I.5(4).59: unless from Subst. γυιόδάμας, ὁ, athlete.