Lewis Short
lēgŭlēïus (noun M) : lex
* A pettifogging lawyer, pettifogger, one who depends on legal technicalities for getting the better of his opponent: leguleius quidam cautus et acutus,Cic. de Or. 1, 55, 236: formularii, vel ut Cicero ait, leguleii,Quint. 12, 3, 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary