Issy

Issy is an English pet form of names beginning with Is-, most commonly Isabel or Isabelle, which are medieval Occitan and Old French adaptations of Elizabeth, itself from the Hebrew name Elisheba meaning my God is an oath or my God is abundance. The name gained popularity as an independent given name following the broader trend of nicknames becoming stand-alone forms during the twentieth century. Related forms include Izzy, Isa, Bella, and Elisa.