The Free On-line Dictionary of Computing (30 December 2018):

roff

    A text formatting language associated with
   Unix.  See groff, nroff, troff.

   [Was roff the original?  Platform(s)?]

   (1998-11-14)


U.S. Gazetteer Places (2000):

Roff, OK -- U.S. town in Oklahoma
   Population (2000):    734
   Housing Units (2000): 328
   Land area (2000):     0.937697 sq. miles (2.428623 sq. km)
   Water area (2000):    0.006222 sq. miles (0.016116 sq. km)
   Total area (2000):    0.943919 sq. miles (2.444739 sq. km)
   FIPS code:            63750
   Located within:       Oklahoma (OK), FIPS 40
   Location:             34.626746 N, 96.841478 W
   ZIP Codes (1990):     74865
   Note: some ZIP codes may be omitted esp. for suburbs.
   Headwords:
    Roff, OK
    Roff