Word Study
cabby
WORDNET DICTIONARY
Noun cabby has 1 sense
- cabby(n = noun.person) cabdriver, cabman, hack driver, hack-driver, livery driver, taxidriver, taximan - someone who drives a taxi for a living; Array is a kind of driver
OXFORD DICTIONARY
cabby, n. (also cabbie) (pl. -ies) colloq. a taxi-driver.
Etymology
CAB + -Y(2)
For further exploring for "cabby" in Webster Dictionary Online