well, this is what 'gore' means for ya, if it helps:
Dictionary.com Unabridged (v 1.1) - Cite This Source
–noun 1. a triangular piece of material inserted in a garment, sail, etc., to give it greater width or a desired shape. Compare godet (def. 1), gusset (def. 1).
2. one of the panels, usually tapering or shaped, making up a garment, as a skirt.
[Origin: bef. 900; ME; OE gāra corner (c. G Gehre gusset); cf. OE gār spear]