- ++deàrsgnaidh
- excellent, is allied to Old Irish dersigem, præcellimus, dirósci, excels, doroscai, præstet, *di-roscag- (Thurneysen), *roscag = ro-od-sec-, root sec, pass, as in seach? Early Irish dersciagthech, splendid.
Etymological dictionary of the Gaelic language. Alexander Gairm Publications. 1982.