τελματώδης
From LSJ
εἰ ἀποκρυπτόντων τῶν Μήδων τὸν ἥλιον ὑπὸ σκιῇ ἔσοιτο πρὸς αὐτοὺς ἡ μάχη καὶ οὐκ ἐν ἡλίῳ → if the Medes hid the sun, the battle would be to them in the shade and not in the sun
English (LSJ)
ες,
A marshy, swampy, muddy, λίμνη Arist.HA570a8; πεδίον D.S.1.30; ὕδωρ Plu.Mar.38; χωρία Gal.6.702. II τελματώδεα parts of the body full of humours, Hp.Gland.4.
German (Pape)
[Seite 1088] ες, sumpfartig, morastig, schlammig; Arist. H. A. 6, 16; ὕδωρ, Plut. Mir. 43; Schol. Il. 21, 172.