diarrhœa
From LSJ
νόησε δὲ δῖος Ὀδυσσεὺς σαίνοντάς τε κύνας, περί τε κτύπος ἦλθε ποδοῖιν → godly Odysseus heard the fawning of dogs, and on top of that came the beat of two feet
subs.
Ar. and P. διάρροια, ἡ.
They suffered from diarrhœa: κάτω διεχώρει αὐτοῖς (Xen., Anab. 4, 8, 20).