Obs. rare. [? ad. It. collegatione combination, league (Florio), ad. L. colligātiōn-em COLLIGATION: cf. OF. collégation as var. of colligation (1407 in Godef.).] An alliance, confederation.
a. 1700. Rycaut, Contn. Knolles Hist. Turks, 1478 (L.). The Count of Mansfelt and Duke of Weymar were expected with their troupes to joyne with him; this collegation appeared terrible, and to threaten Vienna itself.