cach·in·nate | \ ˈka-kə-ˌnāt \ cachinnated; cachinnating
intransitive verb : to laugh loudly or immoderately
Musician, technologist, storyteller
from col– together + –loquium speaking, from loqui to speak
All the modern dictionaries mention that it’s specific to elevated speech/conversation. Interesting that “colloquial” is used to mean common speech.
VERB
literary
‘the light was coruscating through the walls’
Early 18th century from Latin coruscat- ‘glittered’, from the verb coruscare.
https://en.oxforddictionaries.com/definition/coruscate
NB: Never doubt my commitment to Sparkle Motion.