From various grammars I have gathered that there is a vowel-copying rule in Welsh which changes words like aml, pobl, cefn into amal, pobol, cefen (some of these are real spellings and some aren't) and another rule which changes w to y when suffixes are added, and changes y from the sound of (Welsh) u to something like a schwa. But I haven't been able to find out how this intereacts with the rule that makes w's (the vowel) and "ee"-like y's (the ones which sound the same as u) into the schwa type y. I have seen "llwdn" written "llwdwn", and heard "llyfyr" pronounced like "llyfir". This makes it look like the part of the rule that changes w to y is not triggered by adding in the new w, but that copying "y" does change the firt one. If anyone knows if this is the case or not, please let me know! While I'm at it, does anyone have any idea what the plural of "cwmwlws" is? "cymylysau"? Maybe I can find out in the Geiriadur Termau. Thanks, Nick Kibre 6500njk@ucsbuxa.ucsb.edu UC Santa Barbara Linguistics PS: Dw i'n chwilio llyfrau yn y Gymraeg (does dim yn llyfrgell fy ysgol i ond clasuron). Oes rhywun sy'n gwybod cyfeiriad cyhoeddwr sy'n cyhoeddi lle+n gyfoes?