From V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016) :
NROFF
New Run-OFF (Unix)
From The Free On-line Dictionary of Computing (30 December 2018) :
nroff
/N'rof/ [Unix, from "new roff"] A text formatting
language and interpreter, companion to the Unix typesetter
troff, accepting identical input but preparing output for
terminals and line printers. See also groff.
[{Jargon File]
(2012-12-14)