Afon Derwent (Swydd Derby): Gwahaniaeth rhwng fersiynau

 

==Etymoleg a Diwylliant Gymraeg==

Mae Derwent yn deillio o enw afon [[Brythoneg|Frythoneg]] *Deruentiū, wedi'i Ladineiddio fel ''Deruentiō'', sy'n golygu "(Perthyn/Yn ymwneud â'r) Goedwig Coed Derw"; goroesodd hen enw'r afon mewn barddoniaeth Gymraeg ganoloesol, megis [[Pais Dinogad]] ynghlwm wrth y gerdd fwy [[Y Gododdin]], fel ''Derwennydd''.<ref>Delamarre, Xavier, Dictionnaire de la langue gauloise, 2nd ed., Editions Errance, Paris, 2003, p. 141</ref><ref>Gruffydd, R. G., "Where was Rhaeadr Derwennydd (Canu Aneirin line 1114)?', in A. T. E. Matonis and D. F. Melia (eds.), Celtic Language, Celtic Culture: A Festschrift for Eric P. Hamp, Van Nuys, Calif., 1990, pp. 261-6.</ref><ref>Charles-Edwards, T. M. , Wales and the Britons, 350-1064, Oxford University Press, Oxford, 2013, pp. 369-370</ref><ref>{{Cite book | last = Ekwall| first = Eilert| author-link = | last2 = | first2 = | author2-link = | title = The Concise Oxford Dictionary of English Place Names| place= Oxford| publisher = Clarendon Press| origyear = 1936| year = 1960| page = 143 | volume = | edition = Fourth | url = | doi = | id = | isbn = 0-19-869103-3 | postscript = <!--None-->}}</ref>