Loud, boisterous laughter.

Origin: The word 'cachinnation' originates from the Latin verb 'cachinnare', which means 'to laugh loudly'. The word evolved from Latin into English during the early 19th century. Historical and Cultural Context: The term was first attested in English literature in the 19th century, often used in a somewhat humorous or exaggerated context to describe uproarious laughter. Evolution: While 'cachinnation' has retained its original meaning, it is considered more formal or literary in modern usage. Related terms in other languages include the French 'cachinnation' and Italian 'cachinnazione', both directly borrowed from Latin. Modern Relevance: Today, 'cachinnation' is used sparingly, often in literary or humorous contexts to describe loud, uncontrollable laughter. It's occasionally seen in comedic writing or used to add a touch of sophistication to descriptions of laughter.

The word 'cachinnation' is sometimes used by writers to evoke an image of exaggerated or unrestrained laughter, often in a satirical or comedic context.