τρίναξ
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
ᾰκος, ἡ, (ἀκή (A))
A like θρῖναξ, three-pronged mattock, AP6.104 (Phil.) [where ι is short].
German (Pape)
[Seite 1144] ακος, ἡ, der Dreizack, Philp. 14 (VI, 104), ξυλίνας.
Greek (Liddell-Scott)
τρίναξ: -ᾰκος, ὁ, (ἀκὴ) ὡς τὸ θρῖναξ, κοινῶς «θρινάκι», ἐργαλεῖον γεωργικὸν ξύλινον, Ἀνθ. Π. 6. 104 [[[ἔνθα]] τὸ ι βραχύ].
French (Bailly abrégé)
ακος (ἡ) :
c. θρῖναξ.