different between cachinnatory vs cachinatory

English

From cachinnate +? -ory.

cachinnatory (comparative more cachinnatory, superlative most cachinnatory)

Pertaining to loud or immoderate laughter.
- 1835, Edgar Allan Poe, ‘King Pest’:
  But these jests, and others of a similar nature, had evidently produced, at no time, any effect upon the cachinnatory muscles of the tar.

cachinatory (comparative more cachinatory, superlative most cachinatory)

Alternative form of cachinnatory
- 1841, Punch, or The London Charivari
  Also a choice cachinatory chronicle, entitled "How to Laugh, and what to Laugh at."

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