Expat

“An expatriate (in abbreviated form, expat) is a person temporarily or permanently residing in a country and culture other than that of the person's upbringing or legal residence. The word comes from the Latin term expatriātus from ex ("out of") and patriā the ablative case of patria ("country, fatherland"). This "Latin" term comes from the Greek words "exo" meaning outside, and "patrida" meaning country or fatherland.” (http://en.wikipedia.org/wiki/Expatriate)