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Old English hulu (inherited)
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Old Church Slavonic калити (cognate)
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Middle Dutch - (cognate)
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Middle English hul (inherited)
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Middle English hulle (mention)
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Middle English holle (mention)
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Middle English holle (inherited)
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Middle English hoole (mention)
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Middle English hole (inherited)
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Middle English hoole (mention)
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Middle English holle (mention)
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Proto-Germanic *hul- (inherited)
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Proto-Indo-European *ḱel- (derived)
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Proto-Indo-European *kal- (derived)
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Old Irish calad (cognate)