Hello,
all comments are very interestingg...

I remember those good old XBase days... imho they used the Word Fox mainly because of the "X" in Xbase.
there are a just few words ending with X. Just an idea.
Quoted from foxprohistory.org: 1984 (December) Fox Software releases FoxBASE., This was a dBASE II work-alike

Warm regards,
Pablo V