Pronunciation: [ɛkspˈe͡ɪʃɪˌe͡ɪtə] (IPA) 
The correct spelling of the word expatiater is with an "e" after the "a". This creates the sound of "ayt" at the end, which is represented in the IPA phonetic transcription as /ɛkˈspeɪtiˌeɪtər/. The word means someone who indulges in lengthy discussions or elaborates on a topic at length. It is important to pay attention to proper spelling in order to effectively communicate with others and avoid confusion.
The term "expatiater" does not have its own etymology as it is a derivative form of the verb "expatiate". The etymology of "expatiate" can be traced back to the Latin word "expatiari", which is a combination of "ex" meaning "out" and "spatium" meaning "space" or "room". The Latin verb "expatiari" means "to wander or roam freely". In English, "expatiate" initially meant to wander or roam freely physically but later evolved to the figurative sense of speaking or writing at length and in great detail on a particular topic. As such, "expatiater" would refer to someone who engages in the act of expatiating, although it is a relatively uncommon term.
