n (see O'Rahilly, Ériu xiii 162 ).

(a) some kind of sea-weed (?); the thick stalk of some kinds of brown seaweed (?) : feam cacha trachta ` sea-wrack ' Laws v 482.30 . crim, feam, fiad-ubull, 474.1 . femm a fimbria .i. o luibniu maris. unde dicitur femuir .i. femfēr, Phil. Soc. Trans. 1859, 210 = a fimbria .i. a luibniu .i. mairis ; unde fembur, O'Mulc. 515 . Cf. femm `a long tail ; a sea rod ' P. O'C. cf. 2 fíam;

(b) the membrum virile (?) : feam (gl. mentula), Ir. Gl. 97 .