blithen means to make glad or blithe; gladden. Lexicurio rates it Sui generis — a strength score of 89 out of 100.
Etymology
From blithe + -en.
verb
- To make glad or blithe; gladden.“When we entered the parlour, which had been so often blithened with the jocose spirit of its defunct mistress, we confess that our emotions were almost too great for our fortitude, […]”
- To become glad or blithe; gladden.“The villages blithened when he came; […]”