Correct spelling for the English word "letted have" is [lˈɛtɪd hˈav], [lˈɛtɪd hˈav], [l_ˈɛ_t_ɪ_d h_ˈa_v] (IPA phonetic alphabet).
The phrase "letted have" is quite rare and outdated in contemporary English. It is a combination of the verb "let" in its archaic sense and the verb "have". "Let" derives from Old English "lǽtan" meaning "to allow" or "to permit". "Have" stems from Old English "habban", which signifies "to possess" or "to hold".
In the context of "letted have", the phrase implies granting permission or consent to possess or obtain something. It is worth noting that "letted have" is not commonly used today, and contemporary English would typically use alternative phrases, such as "allowed to have" or "permitted to possess".