laetificate
To make, or become, happy.
rare
It is called the laetificant, or Powder of gladness, from its effect, for it laetificates the heart and spirits
To enrich; to fertilize.
rare, transitive
Where it comes from
Borrowed from Latin laetificātus, perfect passive participle of laetificō (“to be energetic or outgoing”), see -ate (verb-forming suffix).
Adapted from the Wiktionary entry laetificate (CC BY-SA 4.0).