Correct spelling for the English word "nighteries" is [nˈa͡ɪtəɹiz], [nˈaɪtəɹiz], [n_ˈaɪ_t_ə_ɹ_i_z] (IPA phonetic alphabet).
The word "nighteries" does not have an established etymology, as it is not commonly used or recognized in the English language. It appears to be a combination of the word "night" and the suffix "-eries", which is often used to form nouns indicating a collection or place associated with a particular type of activity. However, it is possible that "nighteries" is a coined or slang term specific to a certain context or region, and its etymology would vary accordingly.