toupee
tou.pee \tu:-'pa-\ n [F toupet forelock, fr. OF, dim. of top, toup, of Gmc origin;] akin to OHG zopf tuft of hair - more at TOP 1: a curl or lock of hair made into a topknot on a periwig or natural haird ress; also : a periwig with such a topknot 2: a small wig or section of false hair worn to cover a bald spot