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Middle English why (cognate)
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Proto-Germanic *wīz (inherited)
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Proto-Germanic *hwī (inherited)
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Proto-Germanic *wīhą (inherited)
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Middle High German wiu (cognate)
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Old Danish hvi (cognate)
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Old Swedish vir (inherited)
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Old Swedish hvi (inherited)
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Old High German hwiu (cognate)
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Proto-Indo-European *wéy (inherited)
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Proto-Indo-European *éǵh₂ (mention)
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Proto-Indo-European *kʷey (inherited)
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Proto-Indo-European *kʷis (mention)
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Proto-Indo-European *weyk- (derived)
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Norwegian Bokmål hvi (cognate)
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Norwegian Nynorsk kvi (cognate)
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Old Norse hví (inherited)
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Old Norse hví (mention)
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Old Norse vé (inherited)
→
Old English we (cognate)
→
Icelandic hví (cognate)
→
Norwegian Nynorsk vi (cognate)
→
Norwegian Nynorsk kvi (cognate)
→
Elfdalian wįð (cognate)