| Alb. | bajëzë et ver | Coot,138 |
| Breton | baille,baillez | Coot,138 |
| Breton | bailh | spot on forehead of an animal |
| Breton | estik bailh | Redstart, 347 (white forehead) |
| Franç. (a.litt.) | baille | white spot |
| Franç.: reg. | Nightingale baillet | Redstart, 347 |
| Franç.: Romans | beille | bluette, tison, FEW 23: 48 |
| Engl. | bay-leaf | laurel leaf, from its colour, not from Franch baie "berry"; "berry leaf" is devoid of meaning |
| Engl. | bay-duck | Shelduck, 36, Scaup Duck, 50 for their colour (used coll. for diving ducks by ornithologists on the assumption that bay, in this case, is a synonym of "gulf, inlet") |
| Franç.: reg. | bayard | having a spot on forehead; spotted animal |
| Prov. | bayardo | bay |
| Franç.: Isère | darneu bayar | Woodchat Shrike, 327 |
| Esp. | bayuela | id. |
| Franç.: Lyon | dzan-bayon | Chaffinch, 432 |
| Franç.: Pléchâtel | byar | couleur entre alezan et noir, FEW 23: 187 |
| Franç.: St.Nab | biâié | barioler, FEW 23: 187 |
| Cat. | bai, bayo | bay |
| Kurdish: Sorani | beyan | morning |
| Alb. | zbej | I pale |
| Alb. | zbetë | paleness, jaundice |
| Alb. | benk, zbenkhen | Oriole, 296 |
| Ital.: Piem. | bièt | pale; Ven. biato id. |
| Franç.: H.Pyr. | bét | beautiful |
| Franç.: reg. et arg. | bat | beautiful, shiny |
| Franç. | battant (neuf) | new (Malvezin) |
| Gael.I. | beith | birch |
| Breton | bez | id. |
| Cymric | bedw | id. |
| Franç.: Dord. | bétou | id. |
| Galice | bedolo, vidalo | id. |
| Esp. | abedul | id.Lat. betullus |
| Ital.: Alpes, rép. | bèdola | birch, Stampa, 1937: 67 |
| R.Rom. | baduogn | birch |
| Lat. | badius | bay |
| Gael.I. | buide | yellow, bay |
| Skr. | bhadráh | beautiful |
| Breton | bed | world, universe ð3.6.40. |
| Cymric | byd | world |
| Arabic | al-baid | egg white |
| Arabic | abyad, bayad | white, clear, pure |
| Arabic | beida, bed | egg |
| Arabic: Eg. | baydak | Egyptian Vulture, 200 |
| Arabic: Tchad | diga el-baïda | Egyptian Vulture, 200 |
| Arabic: Eg. | bydàni | Cattle Egret, 122 |
| Arabic | buma beda | Barn Owl, 238 |
| Chinese | bái | white |