chamfer

Back-formation from chamfering, from Middle French chanfrain, from Middle French, Old French chanfraindre, possibly a compound of chant (“corner”), from Latin canthus (of either Celtic or Latin origin) + fraindre (“to break”), from frangō (“I break”).^[1]

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• (US) IPA^(key): /ˈt͡ʃæm.fɚ/
• (UK) IPA^(key): /ˈʃæm.fə/

chamfer (plural chamfers)

1. An obtuse-angled relief or cut at an edge added for a finished appearance and to break sharp edges.

   Synonyms: round, bevel

   Antonym: fillet

chamfer (third-person singular simple present chamfers, present participle chamfering, simple past and past participle chamfered)

1. (transitive) To cut off the edge or corner of something.

   Synonym: bevel

2. (transitive) To cut a groove in something.

   Synonym: flute

• chamfer on Wikipedia.Wikipedia
• “chamfer”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.