chamfer

 
Pronunciation: /ˈtʃamfə/
Carpentry

verb

[with object]
  • cut away (a right-angled edge or corner) to make a symmetrical sloping edge: (as adjective chamfered) a neat chamfered edge

noun

  • a symmetrical sloping surface at an edge or corner.

Origin:

mid 16th century (in the sense 'flute or furrow'): back-formation from chamfering, from French chamfrain, from chant 'edge' (see cant2) + fraint 'broken' (from Old French fraindre 'break', from Latin frangere)