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Old English hol (inherited)
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Middle English hole (inherited)
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Middle English hol (mention)
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Middle English holden (inherited)
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Proto-Germanic *hulą (inherited)
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Proto-Germanic *hulaz (inherited)
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Proto-West Germanic *hol (inherited)
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Proto-West Germanic *haldan (inherited)
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Proto-Indo-European *per- (root)
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Proto-Indo-European *ḱel- (inherited)
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Proto-Indo-European *ḱewh₁- (mention)
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Proto-Indo-European *ḱel- (inherited)