Teitl o'r clawr = Cover title.
Geiriau Llydaweg a fabwysiadwyd gan y geiriadurwyr Thomas Jones, Iolo Morgannwg, William Owen Pughe ac eraill by Rhisiart Hincks. ISBN 1856442357. Published by Prifysgol Cymru, Aberystwyth in 1993. Publication and catalogue information, links to buy online and reader comments.