What does incognito mean?
According to the Apple Dictionary...
incognito |ËŒinkägˈnÄ“tÅ; inˈkägniËŒtÅ|
adjective & adverb
(of a person) having one's true identity concealed : [as adj. ] in order to observe you have to be incognito | [as adv. ] he is now operating incognito.
noun ( pl. -tos)
an assumed or false identity
Which accurately describes what Google's incognito function does purports to accomplish.