v. To make something worse by diversifying.
2012
Foreign content: For 10 years, a way to "diworsify" your booming Canada-focused portfolio; now, a refuge while Canada gets its stock market comeuppance.
2012
But don't invest in more than 6-8 equity funds, because monitoring them will be a challenge. As investment guru Peter Lynch said, too many funds will only 'diworsify' your portfolio.
1998 (earliest)
This is of some concern as management appears intent on using most of its cash pile to diversify out of its core activities into other parts of the distribution chain. 'Diworsify' is how one shareholder described suggestions by Clydeport that it might extend its practice of chartering a fleet of coal carriers and expand into road haulage.
The noun version of this term — diworsification — dates to about 1989.