Welsh

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Etymology

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niwl +‎ -en

Pronunciation

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Noun

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niwlen f (plural niwlennau, not mutable)

  1. patch of mist or haze
  2. (pathology) cataract (opacity of the lens in the eye)

Further reading

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  • R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “niwlen”, in Geiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies