Also agr-. [f. AGGROUP v. + -MENT.] Arrangement in a group or groups.
1862. Art Jrnl., June, 130. The time is sunset, and the mass of the broadcast aggroupment is in shade.
1864. Webster, Agroupment.
1874. Boutell, Arms & Armour, iii. 42. The remarkable and celebrated aggroupment or formation known under this term ‘phalanx.’
