Gair y Dydd: seren-ŵyl https://geiriadur.ac.uk/gpc/gpc.html?seren-wyl – enw arall ar yr Ystwyll (6 Ionawr), sy’n coffáu amlygiad Crist i’r Doethion. #Cymraeg
Word of the Day: seren-ŵyl 'Epiphany': https://geiriadur.ac.uk/gpc/gpc.html?seren-wyl – another name for the more usual 'Ystwyll' (the Epiphany, 6 January), which commemorates Christ's manifestation to the Wise Men. #Welsh