- dearc-luachrach
- dearc, dearc-luachracha lizad, Irish earcluachra, the " earc of the rashes", Middle Irish erc, speckled, red, Irish earc, salmon, Welsh erch, fuscus, darkish, *erko-s, for perko-; Greek $$Gperknós, dark-blue, $$Gpérkc, a perch; Sanskrit pr$$.çnis, speckled; German forelle, a trout, Old High German forhanna. For meaning, cf. breac, a trout, "the speckled one". The d of Gaelic dearc belongs to the article.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.