meretricious (adj.)
1620s, "pertaining to harlots," from Latin meretricius "of or pertaining to prostitutes," from meretrix (genitive meretricis) "prostitute," literally "woman who earns money," from merere, mereri "to earn, gain" (see merit (n.)). Meaning "gaudily alluring" is from 1630s. Related: Meretriciously; meretriciousness.