mirth"ful*ness

Webster's Dictionary (GCIDE)

1.Full of mirth or merriment; merry; as, mirthful children. [1913 Webster]

2.Indicating or inspiring mirth; as, a mirthful face. [1913 Webster]

Mirthful, comic shows. --Shak. [1913 Webster] -- Mirth"ful*ly, adv. -- Mirth"ful*ness, n. [1913 Webster]