My source for
dismeaning "completely" was the Miriam Webster Prefixes and Suffixes reference. (sorry about the superfluous characters!) I'm not arguing that you are wrong, Faldage, I'm just posting my source. If I'm mistaken, you can see why.
dis- prefix 7ME dis-, des-, fr. OF ? L@ OF des-, dis-, fr. L dis-,
lit., apart, to pieces@ akin to OE te- apart, to pieces, OHG zi-,
ze-, Goth dis- apart, Gk dia through, Alb tsh- apart, L duo
two8 1 a : do the opposite of : reverse <a specified action=
9disjoin: 9disestablish: 9disown: 9disqualify: b : deprive of
<a specified character, quality, or rank= 9disable: 9disprince:
: deprive of <a specified object= 9disfrock: c : exclude or
expel from 9disbar: 9discastle: 2 : opposite of : contrary of
: absence of 9disunion: 9disaffection: 3 : not 9dishonest:
9disloyal: 4
: completely 9disannul: 5 7by folk etymology8
: - 9disfunction: 9distrophy:
I
