Lewis Short
ambĭgŭĭtas (noun F) : ambiguus
* Equivocalness, double sense, ambiguity, uncertainty: sed nobis ambiguitas nominis,Cic. Inv. 1, 40: verbi,Liv. 41, 18: in ambiguitatem incidere,Sen. Ep. 9; so Quint. 5, 10, 106; 6, 3, 47; 7, 9, 3: omne quod (vir) loquitur, sine ambiguitate venit, cometh to pass without uncertainty, surely, * Vulg. 1 Reg. 9, 6 al.—In plur.: relictis ambiguitatibus,Sen. Ep. 108; Quint. 1, 10, 5.
Charlton T. Lewis, Charles Short, A Latin Dictionary