the.com/wedge heel

means A shoe heel shaped as one solid triangular slab running from the ball to the back of the foot, instead of a narrow post or stiletto spike.

from Wedge heels got their name simply from geometry — the sole forms a 'wedge,' the same word used for any object thick at one end and tapering to nothing at the other, traced back to Old English 'wecg,' meaning a tool for splitting wood. The shoe style itself surged in the 1930s and 40s, often credited to designers experimenting with cork and other materials during wartime shortages of traditional heel-making supplies, prizing stability and ease of walking over the precarious lift of a spike heel.