midriff
mid.riff \'mid-.rif\ n [ME midrif, fr. OE midhrif, fr. middle mid + hrif
belly]; akin to OHG href body, L corpus 1: DIAPHRAGM 2: the mid-region of
the human torso 3a: a section of a woman's garment that covers the midriff
3b: a woman's garment that exposes the midriff
Webster's English Dictionary