Cathy is a diminutive form of the name Catherine, which has several English meanings:
1. "Pure" or "chaste" derived from the Greek name "Akatheia," meaning "unpolluted" or "incorruptible."
2. "Purest" a variation emphasizing the purity aspect.
3. "Liberty" from the Greek word "akathestos," meaning "unbound" or "free."
So, you could say:
Cathy means "Pure" or "Chaste" in English.
Cathy signifies "Liberty" or "Unbound" in English.