Dotty Is A Girl’s Name Of Greek Origin. It’s A Shortened Form Of Dorothy, The Anglicized Version Of The Greek Name Dorothea, Which Combines d?ron (gift) With theós (god) To Mean “gift Of God.” The Name Theodora Is Made Up Of The Same Two Elements In Reverse Order. Dotty, Dottie And Dot Are All Sweet Nicknames For Dorothy That Became Popular In The 1890s And Experienced A Revival In The 1930s And 40s. If You’re Looking For An Adorable Vintage-sounding Name For Your Little One, Dotty Could Be The Perfect Choice.