n o, m. later n, f. (muir + dúchann, Ériu xxix 142, 148 ), a mermaid, siren (?) a s. don mhurdhúchuinn , IGT Dec. ex. 433. Mod.Ir. murdhuach, muirdhiúch, murdhúchann, Dinneen . muruchu (leg. -duchu), gl. siren, Ir. Gl. 1020. is é Cacher druí dorat in leges dóib dia mboí in murdúchand oca medrad, LL 3a2 , cf. ar medhradh na murduchann, Leb. Gab.(i) i 204.19 (of same incident). muirduchonn [sic leg.] do ghabail d'iasgairibh Coradh L., AU ii 98.21 = murdhuchann, AFM ii 1006.14 . co cuala . . . dord na murdúchand di Muir Icht, LL 169a14 (g s. or g p.?). muirn na murduchand mara, Metr. Dinds. iii 190.15 (g p.). co nach cualadar san enni acht imall [leg. nuall] . . . na mardhucann , CF 40. na murduchaínd .i. ingena . . . co c[n]essaib gela úas uíscib, RC xv 433.3 . tarla murrdhúchainn ar an muir . . . ┐ do chandaois ceol, Keat. ii 536 . na hegaisc thoratharrda ┐ na murduchaind muridi ┐ cach drong doigdealbda fil for dainib 'the monstrous forms and the maritime sirens and every misshapen group that is among men', CMCS lxiii, 46 .