Fictional Materials for OED

[Benjamin Zimmer]

On Sat, Jan 2, 2010 at 8:51 PM, Jonathan Lighter <wuxxmupp2000 at gmail.com> wrote:
>
> _Unobtainium_ is in the HDAS files from at least 1965.  GB offers more
> than 200 exx., some older than that.

I date it back to 1958 here:

http://www.visualthesaurus.com/cm/wordroutes/2090/


--Ben Zimmer

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