"Variant of Cosette"
The name Cozette is commonly a female name from the "French" origin.
Cozette is a French feminine name formed with the diminutive suffix -ette, and it is a spelling variant of Cosette, the name Victor Hugo gave the child character in Les Miserables (1862). The -s- to -z- substitution is a spelling variation rather than a different name, so the two are the same name written two ways. Neither spelling carries a separate meaning of its own beyond the diminutive form.
Cosette means "Lamb".
The pronunciation of Cozette is koh-ZET.