"Variant of Gittel"
The name Gitty is commonly a female name from the "Hebrew" origin.
Gitty is a Yiddish familiar form of Gittel, also written Gitl, an Ashkenazi Jewish name built on the Yiddish word git (good), which derives from Middle High German guete. The -y ending marks it as a pet form of the fuller name rather than a separate coinage. Both the full name and the short form are recorded in Ashkenazi naming dictionaries.
Gittel means "Good".
The pronunciation of Gitty is GIT-ee.