And it bears mentioning {n,g,t}roff is a reference to RUNOFF, a CTSS formatting program which later made it into other operating systems at least by name if not an actual port. [1]

https://en.wikipedia.org/wiki/TYPSET_and_RUNOFF

I always thought it was quite clever that the macro switch to roff is -m and therefore to format man pages, you run roff -man. Publishing my resume in man format didn't get the reaction I thought it might. Most people just asked for it again in some other format and only one or two people only ever got the joke that a UNIX sysadmin's resume was in -man format.

I see what you did there.