Shanen is of Irish origin, derived from the ancient Gaelic name 'Séamus' which means 'supplanter'. It gained popularity during the Middle Ages and has since been adapted in various forms across different cultures. The name Shanen, pronounced /ʃəˈniːn/, carries a melodic rhythm that makes it appealing to many. Its unique sound lends itself well to creative nicknames and variations, making it versatile for both formal and casual settings.
The name Shanen experienced a peak in popularity during the late 1970s to early 1980s, with over 10 births recorded in both 1976 and 1979. However, it saw a significant decline afterwards, with no more than 9 births per year after 1983.