αἱματίτης
From LSJ
κακοὶ μάρτυρες ἀνθρώποισιν ὀφθαλμοὶ καὶ ὦτα βαρβάρους ψυχὰς ἐχόντων → eyes and ears are poor witnesses for men if their souls do not understand the language (Heraclitus Phil.: Fr. B 107; Testimonia: Fragment 16, line 6)
English (LSJ)
[ῑτ], ου, ὁ,
A blood-like, λίθος αἱ. haematite, a red iron-ore, Dsc.5.126, cf. Athenod. Tars.4; εἰλεὸς αἱ., a disease, Hp.Int.46:— fem., αἱματῖτις φλέψ avein as conductor of blood, Id.Morb.Sacr.15; αἱ. χορδή a black-pudding, Sophil.5; λίθος (cf supr), Thphr.Lap.37.