Lewis Short
sollĭferreum | sōlĭf- (noun N) : (), , (sc. telum) [sollus-, i. e. totus-ferrum]
* A missile weapon made wholly of iron, an iron javelin, Liv. 34, 14 fin.; Gell. 10, 25, 2; cf. Fest. s. v. sollo, p. 298 Müll.; Paul. ex Fest. p. 299 ib.; and s. v. solitaurilia, p. 293 ib.
Charlton T. Lewis, Charles Short, A Latin Dictionary