What is Bonus Judex Secundum Aequum Et Bonum Judicat, Et Aequitatem Stricto Juri Praefert?

Legal Definition
A good judge decides according to what is just and good, and prefers equity to strict law. Co. Litt 34.
-- Black's Law Dictionary
Legal Definition
A good judge decides according to that which is just and good, and prefers equity to strict law.
-- Ballentine's Law Dictionary