Diminutive of Dorothy, from Greek 'dorothea' meaning 'gift of God.'
Dotty began life as an affectionate diminutive of Dorothy, itself the English rendering of the Greek *Dorothea*, a compound of *doron* (gift) and *theos* (God)—meaning, simply, 'gift of God.' The Greek original reversed the word order of the better-known Theodora, and both forms traveled through Byzantine and Latin Christianity before entering the vernacular languages of Europe. Dorothy was well established in England by the sixteenth century, and its playful short forms Dot and Dotty followed naturally.
The name enjoyed particular warmth in the early twentieth century, when diminutives were worn openly as given names rather than hidden behind formal versions. Dorothy herself was everywhere—Dorothy Parker brought razor-sharp wit to American letters, while Dorothy Gale carried ruby slippers across the cultural imagination after the 1939 film adaptation of *The Wizard of Oz*. Dotty, as a standalone, carried a brightness and bounce that parents found irresistible for daughters born in the 1920s through the 1940s.
The word *dotty* also entered British English as slang for charmingly eccentric or delightfully scatterbrained, which gave the name a second, more whimsical resonance. Far from stigmatizing it, many bearers have worn this association with pride, leaning into the suggestion of a personality that is spirited, unconventional, and impossible to ignore. In an era of maximalist vintage revivals, Dotty sits alongside Mabel, Bette, and Flo as a name ripe for rediscovery—compact, cheerful, and full of old-fashioned personality.