"Form of Crystal"
The name Crystle is commonly a female name from the "Greek" origin.
Crystle is a respelling of Crystal, an English word name taken from the noun for rock crystal or clear glass. The English word goes back through Latin crystallum to Greek krystallos, which was used for ice and for clear rock crystal. The -ystle spelling changes the look of the name but not its source or its meaning.
Crystal means "A form of Crystal, Gem, Ice.".
The pronunciation of Crystle is KRIS-tul.