κακόρροος
From LSJ
ἀναπηδῆσαι πρὸς τὸν πάππον → jumped up on his grandfather's knees, sprang up into his grandfather's lap
English (LSJ)
κακόρροον, contr. κακόρρους, κακόρρουν, bringing a grievous flux, of disease, dub. in Ἀρχ.Ἐφ. 1920.80 (Crete, vi B. C.).