According to Chambers 20C, "disect" doesn't exist. According to Oxford Paperback, "disect" doesn't exist. According to OneLook, "disect" doesn't exist.
However, it was accepted on BrainTeaser (British game show) yesterday. Not by human error, as the words are verified by a computer. (The presenter also thought it was a word, but that's an aside.)
A search on Google gives 29,200 hits, and they nearly all seem to be misspellings of "dissect".
However, there is
http://www.veling.nl/anne/templars/roots dict.html
which gives "di two disect". The only resemblant word I know having anything to do with "two" is "bisect". And even if "disect" really is a rare alternative, it would seem one of the most redundant half-Greek, half-Latin words ever invented.
Does anyone here consider there to be really a such word as "disect"?
Stewart.
My e-mail is valid but not my primary mailbox. Please keep replies on the 'group where everyone may benefit.