confelicity
Pleasure in another person's happiness.
rare, uncountable
"It is the first time, is it not? Well, it is my earnest hope that this repast augurs the foundation of a mutual confelicity between us."
Where it comes from
Learned borrowing from Latin con- (“with”) + fēlīcitās (“happiness”)
Adapted from the Wiktionary entry confelicity (CC BY-SA 4.0).