>Which leaves me to wonder about the rest of Anu's "unrelated" words. Anyone know?

okay, let's look at commode (the noun) and discommode (a verb)

to start with, commode comes directly from French and can be thought of, generally, as a convenience of sorts. in turn this comes from the F adj. commode, from L commodus convenient, accommodating.

discommode, meaning to inconvenience, comes from the obsolete verb commode, to suit, to put in order, to accommodate.

QED2

[gyrovague is also easy, the L root -vagus means wandering and gyrus means circuit]