Lewis Short
(verb) : dī-lūcĕo, ēre, , lit., to be light enough to distinguish objects apart; hence, trop.
* To be clear, evident (rare): dilucere brevi fraus coepit,Liv. 8, 27 fin.; cf. id. 3, 16; 25, 29 fin.: emolumentum ejus in animo tuo dilucebit,Gell. 16, 8, 16.—With a subject-clause: satis dilucet, hanc capionem posse dici,Gell. 7, 10, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary