Propaedeutic \Pro`p[ae]*deu"tic\, Propaedeutical
\Pro`p[ae]*deu"tic*al\, a. [Gr. ? to teach beforehand; ? before
+ ? to bring up a child, to educate, teach, fr. ?, ?, a
child.]
Of, pertaining to, or conveying, preliminary instruction;
introductory to any art or science; instructing beforehand.
[1913 Webster]