Schluck

From LSJ

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

Source

German > Latin

Schluck, haustus (z.B. aquae). – mit einem Sch. austrinken, uno impetu epotare; uno potu haurire.