combination (n.)
alliance, league, treaty
H8 I.i.169 [Buckingham to Norfolk, of Wolsey and the treaty] The articles o'th' combination drew / As himself pleased
Ham III.iv.61 [Hamlet to Gertrude, of his father] A combination and a form indeed / Where every god did seem to set his seal
TN V.i.380 [Orsino to Olivia] A solemn combination shall be made / Of our dear souls [i.e. of the marriages to take place]