LATIN DICTIONARYLexicon Latīnum
noun · femininethird declension

cachinnātiō

cachinnātiō f (genitive cachinnātiōnis)

Meaning

  1. immoderate or boisterous laughter, horselaugh
  2. jeering

Declension

declension
formsingularplural
nominativecachinnātiōcachinnātiōnēs
genitivecachinnātiōniscachinnātiōnum
dativecachinnātiōnīcachinnātiōnibus
accusativecachinnātiōnemcachinnātiōnēs
ablativecachinnātiōnecachinnātiōnibus
vocativecachinnātiōcachinnātiōnēs

căchinnātĭo, ōnis, f. id.,
I. a violent laughing, immoderate laughter: sine ullā suspitione nimiae suspitionis, Auct. Her. 3, 14, 25: ut si ridere concessum sit, vituperetur tamen cachinnatio, Cic. Tusc. 4, 31, 66.

Origins

Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-yéti Proto-Indo-European *-eh₂yéti Proto-Indo-European *-h₂tiinflu. Proto-Italic *-ājō Proto-Italic *-āō Latin -ō Latin cachinnō Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin cachinnātiō From cachinnō + -tiō.

Quick answers

What does cachinnātiō mean in Latin?
cachinnātiō, a noun, means “immoderate or boisterous laughter, horselaugh; jeering”.
What is the genitive of cachinnātiō?
The genitive singular is cachinnātiōnis. cachinnātiō is feminine, third declension.