The term was coined in the 1960s and was used fairly informally. Though the combining form 'uni-' is from the Latin 'unus' meaning 'one', the term seems to have been influenced by words such as 'united' and 'universal', meaning that the 'uni-' prefix takes on the definition of 'shared'. In this sense, it can be seen as meaning 'shared by both sexes'.AskOxford: Why does 'unisex' refer to something to do with both sexes, not just one sex?
Hair stylists and beauty salons that serve both men and women are often referred to as unisex. This is typical of other services that traditionally separated the sexes, such as clothing shops.
This article is based on "Unisex" from the free encyclopedia Wikipedia (http://en.wikipedia.org). It is licensed under the terms of the GNU Free Documentation Licencse. In the Wikipedia you can find a list of the authors by visiting the following address: http://en.wikipedia.org/w/index.php?title=Unisex&action=history