ῥιγοπύρετος
From LSJ
ὁ δ' εὖ ἔρδων θεοὺς ἐλπίδι κυδροτέρᾳ σαίνει κέαρ → but he who does well to the gods cheers his heart with a more glorious hope
English (LSJ)
[ῠ], ὁ,
A fever with shivering fits, ague, Gal.19.560,567, Ptol.Tetr.115, Vett.Val.210.5; also ῥῑγο-πύρετον, τό, Phryn.PSp.73B.; Dim. ῥῑγο-τίον, τό, Hsch. s.v. ἠπιόλιον.
German (Pape)
[Seite 842] ὁ, ein Fieber mit heftigem Frostschauer, Hippocr.; bei B. A. 42 τὸ καλούμενον ῥιγοπύρετον.