[jmilton]

While the OED may be considered the definitive source for the vast majority of words, many entries reflect the last print publication in 1989, and are not as in-step with modern usages. Language is continually evolving, and as always, it is best to consult a variety of sources.

[georgecmu]

I prefer "changing" to "evolving" to describe this phenomenon. It is certainly interesting to observe two unrelated words with similar spelling become synonyms in less than 20 years.