πίτυρον
From LSJ
χελῶναι μακάριαι τοῦ δέρματος → you tortoises are fortunate in your skin, you blessed turtles with your shell
English (LSJ)
[ῐ], τό,
A husks of corn, bran, in sg., Thphr.HP8.4.4, Dsc.2.85.2, Gal.6.481: mostly in pl., Hp.Acut.21, al., PCair.Zen.355.87 (iii B.C.), etc.: used in magical ceremonies, D.18.259, Theoc.2.33. 2 bran-like eruption on the skin, esp. the head, scurf, dandruff, Dsc.1.30. 3 bran-like sediment in urine, Hp.Nat.Hom.14.