Γαλατικῶς

From LSJ

ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone

Source

Russian (Dvoretsky)

Γᾰλᾰτικῶς: по-галльски Plut.

Spanish

al estilo gala, a la moda gala