She was over joyous when she received the good news.

She was over-joyous when she received the good news.

Many Joyceans gathered at the conference to discuss James Joyce's works.

The children's laughter filled the room with joyfulnesses.

The joylessnesses of their lives were evident in their expressions.

She is the joyfulest person I know.

She is the joyfullest person I know.

The joyances of life are what make it worth living.

She had a joyant smile on her face.

The joyant towered over the city, casting a shadow that stretched for miles.