Lewis Short
axon (noun M) = ἄξων: .
* A line upon the sundial, its axis, Vitr. 9, 5.
* A part of the ballista, Vitr. 10, 17.
* Axŏnes, um, the laws of Solon engraved on tables of wood (axibus ligneis, Gell. 2, 12; v. axis, II. F.),Amm. 16, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary