Welsh

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Etymology

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Literally "the sleep's herbs".

Noun

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llysiau'r cwsg m (collective, singulative llysieuyn y cwsg)

  1. Alternative form of llysiau cwsg (opium poppy)

Further reading

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