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Old English tō (inherited)
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Old English tā (inherited)
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Middle English to (inherited)
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Middle English to (inherited)
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Middle English to (inherited)
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Middle English tone (mention)
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West Frisian ta (cognate)
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Proto-Germanic *tō (inherited)
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Proto-West Germanic *taihā (inherited)
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Proto-Indo-European *deyḱ- (root)