adv. [ F. certes, for à certes, fr. L. certus. See Certain. ] Certainly; in truth; verily. [ Archaic ] [ 1913 Webster ]
Certes it great pity was to see
Him his nobility so foul deface. Spenser. [ 1913 Webster ]
a. Mutually contrived or planned; agreed on;
Concerted piece (Mus.),
a. Previously arranged; agreed upon beforehand. --