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Old English tōm (inherited)
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Middle English toom (inherited)
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Middle English tom (mention)
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Middle English toom (inherited)
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Middle English tome (mention)
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Middle English tom (mention)
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Proto-Germanic *tōmaz (inherited)
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Proto-Germanic *tōmą (derived)
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Proto-Indo-European *doma- (derived)
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Proto-Indo-European *dema- (mention)
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Icelandic tómur (cognate)
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Old Norse tóm (derived)
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Old Norse tómr (cognate)