pos·tiche \päˈstēsh, pȯˈ-, ˈ ̷ ̷ˌ ̷ ̷\noun (-s) Etymology: French, from Spanish postizo, from postizo false, artificial, short for apostizo, from Late Latin appositicius added, from Latin appositus (past participle of apponere to place near, apply to, add) + -icius -itious — more at apposite : false hair: as a.: switch b.: toupee