Correct spelling for the English word "petitt" is [pˈɛtɪt], [pˈɛtɪt], [p_ˈɛ_t_ɪ_t] (IPA phonetic alphabet).
The word "petit" can be traced back to the Latin word "pictus", which means "painted" or "decorated". It entered Middle English from Old French, where it was used to describe something small or insignificant. Over time, the spelling evolved, and "petit" became "petty" in English. Today, "petit" is often used to describe something or someone small, minor, or unimportant.