reed: Ar. and P. κάλαμος, ὁ.
stick: Ar. and P. βακτηρία, ἡ, V. βάκτρον, τό, σκῆπτρον, τό; see stick.
for punishing: Ar. and P. ῥάβδος, ἡ.
Ar. ῥαβδίζειν; see beat.