The Collaborative International Dictionary of English v.0.48:
Aggroup \Ag*group"\, v. t. [imp. & p. p. Aggrouped; p. pr. & vb. n. Aggrouping.] [F. agrouper; [`a] (L. ad) + groupe group. See Group..] To bring together in a group; to group. --Dryden. [1913 Webster]WordNet (r) 3.0 (2006):
aggroup v 1: form a group or group together [syn: group, aggroup]