From Longman Dictionary of Contemporary Englishmirthmirth /mɜːθ $ mɜːrθ/ noun [uncountable] literaryHAPPY happiness and laughter Her body began to shake with mirth. —mirthful adjective
Examples from the Corpus
mirth• Our companions in this journey should be mirth, tranquillity and enthusiasm and we will never be bored.• A wonderful, joyous mouth that could laugh and grin and smile in a hundred expressions of precious, life-giving mirth.• Athelstan just glared at her but still she could not control her mirth.• Anyway, fashions in mirth change.• Lili was taken by a fit of mirth and lay with a cushion pressed to her nose.Origin mirth Old English myrgth, from myrge; → MERRY 