ξιφοδιδάσκαλος
From LSJ
ὅσῳ διαφέρει σῦκα καρδάμων → as different as chalk from cheese, different as chalk from cheese, apples and oranges, like apples and oranges, by as much as cardamom is different from figs
ο
δάσκαλος της ξιφασκίας.
[ΕΤΥΜΟΛ. Η λ. μαρτυρείται από το 1890 στην εφημερίδα Εφημερίς].