Definition from Wiktionary, the free dictionary
Alternative forms 
Proper noun 
- A diminutive of the male given name Robert.
- 1944 Mazo de la Roche, The Building of Jalna, Dundurn Press Ltd (2009), ISBN 1550028782, page 163:
- It was a real irritation to Robert's parents to hear Adeline call him Bobby. They tried to intimate their disapproval by pronouncing his name very distinctly when they addressed him.
- A diminutive of the female given name Roberta.