preparation (n.) Look up preparation at Dictionary.com
late 14c., "act of preparing," from Latin praeparationem (nominative praeparatio) "a making ready," noun of action from past participle stem of praeparare "prepare," from prae "before" (see pre-) + parare "make ready" (from PIE root *pere- (1) "to produce, procure"). Meaning "a substance especially prepared" is from 1640s.