A new word! — for decades I've heard and read, typed and said "ABTRUSE" when it should have been "ABSTRUSE" ... oops! According to Wiktionary:

1. (obsolete) Concealed or hidden out of the way; secret.
2. Difficult to comprehend or understand; recondite; obscure; esoteric.

Yes, and even more abstruse: "abstrusion" is defined as "(rare) the act of thrusting away".

(Hmmmm! Perhaps that definition was not meant the way it was first parsed in some low minds? cf. DoMeta (1999-05-08), ...) - ^z - 2015-10-16