The
international abbreviation and internet top level domain for South Africa. The "Z" derives from "Zuid-Afrika", which is the Dutch name for the country, as Dutch was (with English) the official language of South Africa until Afrikaans superseded it in the 1920s. (The Afrikaans word is "Suid-Afrika", and .sa would seem far more logical, however, this
abbreviation has subsequently been used for Saudi Arabia).