-something

n combining form

1. a person whose age can be approximately expressed by a specified decade
2. (as modifier)the thirtysomething market

Word Origin for -something

C20: from the US television series thirtysomething

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012