←
Old English wā (inherited)
←
Old English wǣ (mention)
←
Middle English wo (inherited)
←
Middle English wei (mention)
←
Middle English wa (mention)
←
Proto-Germanic *wai (inherited)
←
Ancient Greek οὐαί (cognate)
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Proto-Indo-European *wáy (inherited)
→
Italian guaio (cognate)
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Luxembourgish Wéi (cognate)
→
Pennsylvania German Weh (cognate)