indigitate

from The Collaborative International Dictionary of English v.0.48

Indigitate \In*dig"i*tate\, v. i. [Pref. in- in + L. digitus
   finger.]
   To communicate ideas by the fingers; to show or compute by
   the fingers. [Obs.]
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Indigitate \In*dig"i*tate\, v. t. [imp. & p. p. {Indigitated};
   p. pr. & vb. n. {Indigitating}.]
   To point out with the finger; to indicate. [Obs.]
   [1913 Webster]

         The depressing this finger, . . . in the right hand
         indigitates six hundred.                 --Sir T.
                                                  Browne.
   [1913 Webster]