Capable of being disabled or made unfit; able to be disqualified.
From 'dis-' plus 'able' (from Latin 'habilis'). The '-able' suffix creates adjectives meaning 'capable of being' or 'worthy of.' This appears to be an extremely rare or possibly nonexistent standard English word.
While 'dishable' follows perfect English word-formation rules, it's so rare that most dictionaries don't record it—showing that grammar permits a word doesn't mean speakers actually use it; actual frequency matters.
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