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Instead, the best known and most widely used Welsh term for the nation’s folkloric beings is perhaps tylwyth teg, ‘the good folk’, first attested in the fourteenth century in a poem of Dafydd ap Gwilym,19 and later in William Salesbury’s Welsh-English dictionary (1547).20 Other later terms such as plant (‘children’), plant annwn (‘children of the underworld’), gwragedd annwyl (‘dear women’) and anweledig (‘hidden ones’) are similarly euphemistic and elliptical.
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Francis Young (Twilight of the Godlings: The Shadowy Beginnings of Britain's Supernatural Beings)