←
Proto-Germanic *ahslō (inherited)
←
Old Swedish axl (inherited)
←
Old Swedish axul (inherited)
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Proto-Indo-European *h₂eḱs- (derived)
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Old Norse ǫxl (inherited)
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Old Norse ǫxull (inherited)
→
Pennsylvania German Axel (cognate)
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Yiddish אַקסל (cognate)