n n p. na beru-sa, Éigse i 86.3 . Mainly in glossaries and B. na f. and expld. as water; spring, well, stream: b.¤ .i. uisce . . . biror ┐ inbir ┐ tobur, Corm. Y 158. Berba .i. ber nó b.¤ ┐ ba . . . usce balb, Dinds. 13. `bior' ainm da gach uiscce, BNnÉ 235 § 156 . `bior' ┐ `an' is `dobhar' / trí hanmann uisge in domhuin, Metr. Gl. 12 § 15. as ionann bior ┐ uisge, O'Cl. dobur usce . . . nó b.¤ uisge isan bretnais, O'Dav. 745. uth bó bruithi do bior `boiled in water', MR 124.9 . fri do biur bus nairne, O'Dav. 202. b.¤ tipra nō srut[h], Corm. Y 121 s.v. biror. b.¤ tiobra, Metr. Gl. 21 § 70 , O'Cl. B. na f.: sēim nar bach na beru-sa (glossed .i. na huiscidi) mo c[h]odul (glossed .i. mo lethar) `these waters almost broke my shoes', Éigse i 86.3 .

pn As name of river: B., LL 11048 ( TBC-LL¹ 4226 ).

Compds. biorbhogha `a Rain Bow', Eg. Gl. 733. biorbuafan `water-snake', 732 . biordoras `a sluce or floudgate', 709 . .ix. ṁbunnsacha birgaissi ina laim `nine . . . osier-rods' ( SG ii 200 ), Acall. 3798 (or fr. 1 bir + gas ?).