Designed or treated to resist chipping or breaking into small fragments; durable against chip damage.
From chip + proof (from Old French 'prueve,' meaning test or trial, which evolved to mean 'resistant to'), creating a compound adjective meaning 'resistant to chipping.'
The '-proof' suffix is a modern productivity machine in English—we apply it to almost anything to describe resistance ('waterproof,' 'childproof,' 'shockproof'), creating new words that didn't exist a generation ago as new technologies demand new descriptions.
Complete word intelligence in one call. Free tier — 50 lookups/day.