Achos roedd problem tebyg 'da fi ychydig o wythnosau yn o+l, rydw i'n meddwl fy mod yn gallu ateb gofyniad Geraint Jones (yr wyneb, yr w+y ond y wisg...). Mae John Williams hefyd wedi trio ffeindio ateb. Sorry for continuing in English, but it takes me to long to write in Welsh as I am far from speaking it fluently (yn affodus). W represents two sounds in Welsh: the vowel and the consonant. The form of the articel depends on the sound following, therefore y in front of the consonantal w, e.g. y wisg, y wlad, ... as in these words w is no vowel and there is only one syllable (accent lies on the i of gwisg and a of gwlad). But yr in front of the vowel w, e.g. yr wylo, yr wyneb, yr w+yl, ... as in these words w is a vowel. The rule to write y with words having a root beginnig with gw- is not always correct, as even after g- w may be a vowel (gw+yl). This explanation is an attempt. I think it may be correct, but please tell me, if you think it doesn't work, because I myself are not a native speaker, so I only tried to figure it out from information given in dictionaries, etc. Konstantin.Woebking@uibk.ac.at