Ddim yn ôl Geiriadur Prifysgol Cymru, TermCymru a’r Porth Termau – maen nhw i gyd yn ei sillafu ‘cynorthwyydd’.
Claire
From: Discussion of Welsh language technical terminology and vocabulary
[mailto:[log in to unmask]] On Behalf Of Angharad Evans
Sent: 12 June 2019 08:52
To: [log in to unmask]
Subject: Cynorthwy-ydd
Bore da
Rwy'n gywir i ddweud bod angen sillafu cynorthwy-ydd fel hyn?
Diolch yn fawr.
Cofion
Angharad
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