the.com/bevel

means A bevel is a sloped edge or surface cut at an angle other than a right angle, where two surfaces meet without forming a perfect 90-degree corner.

from The word's roots are genuinely murky — etymologists trace it to Old French 'baif' or 'bevel,' possibly related to 'baer,' to gape or yawn open, as if the angled edge is a mouth held ajar rather than shut tight. It surfaces in English in carpentry and masonry contexts, naming the tilted edges craftsmen cut so joints would fit flush. Beyond that French thread, the trail goes cold — no tidy Latin root, no satisfying backstory, just a tool-shed word that stuck.