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Proto-Germanic *aitaz (cognate)
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Ancient Greek ὀγκόω (cognate)
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Ancient Greek ὄγκος (mention)
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Ancient Greek οἰδέω (cognate)
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Proto-Indo-European *enḱ- (derived)
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Proto-Indo-European *onḱ- (derived)
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Proto-Indo-European *h₂neḱ- (derived)
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Proto-Indo-European *h₂id- (derived)