smug
smug \'sm*g\ aj or smug.ger; or smug.gest [prob. modif. of LG smuck neat, fr. MLG, fr. smucken to dress; akin] to OE smoc smock 1: trim or smart in dress : SPRUCE 2: scrupulously clean, neat, or correct : TIDY 3: highly self-satisfied : COMPLACENT - smug.ly av