In obsolete|lang=en terms the difference between less and mess
is that
less is (obsolete) unless while
mess is (obsolete) mass; church service.
As verbs the difference between less and mess
is that
less is (obsolete) to make less; to lessen while
mess is (
label) to take meals with a mess or
mess can be (
label) to make a mess of.
As an adverb less
is to smaller extent.
As an adjective less
is .
As a preposition less
is minus; not including.
As a conjunction less
is (obsolete) unless.
As a noun mess is
(obsolete) mass; church service or
mess can be a disagreeable mixture or confusion of things; hence, a situation resulting from blundering or from misunderstanding; a disorder.