The Collaborative International Dictionary of English v.0.48:

Mawk \Mawk\ (m[add]k), n. [OE. mauk, ma[eth]ek, Icel. ma[eth]kr;
   akin to Dan. maddik, and E. mad an earthworm. See Mad, n.]
   [1913 Webster]
   1. A maggot. [Scot.]
      [1913 Webster]

   2. A slattern; a mawks. [Prov. Eng.]
      [1913 Webster]

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

mawk

    An faster implementation of nawk written by
   Mike Brennan at Boeing in 1991 and distributed under GPL but
   distinct from GNU's gawk.

   Interpreter version 1.1.3 has been ported to Sun-3,
   Sun-4/SunOS 4.0.3; Vax/BSD 4.3, ULTRIX 4.1;
   Stardent 3000/SYSVR3; DECStation/ULTRIX 4.1,
   MS-DOS/Turbo C++.

   (ftp://oxy.edu/public/mawk).

   (2000-05-04)