Most likely nothing, there is no such word in French.
There are a few rare first and last names "Calliste" in France (or in English speaking countries, for that matter), coming from the Greek nymph Callisto (meaning "most beautiful"), so it is possible that the place was named after one of the early French settlers there.
There are still a few "Calliste" or "Caliste" in the West Indies islands or the former French Louisiana, the painter Canute "Old Head" Caliste from Grenada died in 2005, but with over 20 children and 100 grand-children, I suppose his name is safe.
"Calliste" is also the generic French name of over 50 South American bird species mostly in the genus Tangara, so I wonder if someone from this Grenadian Calliste family was an explorer and ornithologist... ^-^
But it's all guess work, there is no information online about the origin of the Calliste settlement name. You need help from a Grenadian local, or some old history book in the French national library that Google hasn't digitalized yet!
Most likely from the Calliste family name of an early French settler. No information about it on the web though, so I could be wrong.
Calliste's birth name is Elizabeth Cathrine Garris.
Song of the little Black Bird.
"Sans souci" means "without any worries / any trouble" in French.
The pronunciation of Grenada as "gren-ade-a" is due to the historical influence of French on the English language. The name "Grenada" originates from Spanish and French explorers who first encountered the island, leading to the pronunciation we use today.
how did grenada got it name
no it does not
the name Madison doesn't mean anything in French.
Shanoy isn't a French name, and doesn't mean anything in French.
Unfortunately, in Jamaica, we don't have presidents. We, instead, use Prime Ministers.
It is a french name.