An equidistant word is one in which the first and last, second and second to last, third and third to last, etc.

language/english/spelling/letter.pattern/equidistant.words New

New entry, edited from material collected for the archive and not yet in a released version.

Problem

An equidistant word is one in which the first and last, second and
second to last, third and third to last, etc. letters are the same
"distance" apart from opposite ends.  What equidistant words are
there?

[ Editor: the distance is counted from the two ends of the alphabet:
in WIZARD, W and D are each fourth from an end, I and R ninth, Z and A
first.  The question is reconstructed from the part quoted in the
reply; it mentioned BY and one other word. ]

Show solution

I find 27 such words (including 'by' and I suspect, your other one):

        bevy by fu girt grit
        hivers hols hovels ir izar
        klop levo lo lolo ol
        polk ri sh trig ve
        vire vole wird wizard wold
        za zira

-- Paul Dale <ccptd@jcu.edu.au>  (June 1996)