No definitions found for 'off the heading'
Perhaps one of these:
opetide,
off the trolley,
ophidioid,
optative mood,
optatively,
optate,
off duty,
obviated,
ophidiidae,
optation,
ovated,
obededom,
off-duty,
optative,
off the top of my head,
opiated,
opt out,
of that ilk