The Jargon File (version 4.4.7, 29 Dec 2003):
modulo /mod'yu?loh/, prep. Except for. An overgeneralization of mathematical terminology; one can consider saying that 4 equals 22 except for the 9s (4 = 22 mod 9). ?Well, LISP seems to work okay now, modulo that GC bug.? ?I feel fine today modulo a slight headache.?The Free On-line Dictionary of Computing (30 December 2018):
modulo /mod'yu-loh/ 1.
modular arithmetic. 2. modulo operator. (1999-07-12)