Amalgamation of two ambitions
Bonding of two bones
Carrying of two crosses
Devotion of two Doves
Endearment of two emotions
Faithfulness of two fellows
Giggles of two gods
Haven of two hearts
Interlocking of two individuals
Joining of two jolly
Kindness of two kindreds
Life of two lovers
Merriment of two mates
Newness of two nobles
Offering of two offerers
Prevailing over two posers
Quickening of two quitters
Radiance of two racers
Sublimeness of two souls
Tenderness of two travellers
Unification of two unicorns
Validation of two valiants
Welding of two wills
Xultant of two xcellences
Yielding of two yachters
Zenith of two zillionaires