The sources checked do not record Gissy as a personal name or give it a meaning.
Playful
Cute
Pink, White, Gold, Cream
Small
Girl
English
G
5 Letters
English diminutive of Pam, formed with the suffix -y
Recorded as a yiddish feminine given name
Diminutive of Dorothy, also used as a diminutive of Dolores
Recorded as an English feminine given name
