Berth, fair, bright; berthawg, rich, wealthy; berthedd, wealthy, rich; berthedd, beauty, fairness; berthdud, berth-tûd, a pleasant country; berthfann, a pleasant place; berthid, berthidau, wealth, riches; berthogi, to make rich, to grow rich.
Berw, a boiling; berwi, to boil.
Berwr, berw, berwy, cress.
Beryon, berywon, kites.
Bestfil, pryf gormes, a wild beast.
Beth, what, what?
Beudag, the top of the wind-pipe.
Beudy, a cow-house.
Beunoeth, beunos, every night.
Beunydd, bob dydd, daily.
Bi, bydd, fe fydd, it shall be.
Biach, a snipe.
Bicar, bicer, vicar.
Bicre, a conflict, a fight.
Bid, bydded, let it be so, be it so.
Bid, a hedge.
Bidog, a hanger, a little sword, a dagger.
Biery, bery, a kite.
Bigwrn, migwrn, a knuckle.
Bilain, a husbandman.
Bilan, a spear, lance.
Bildin, a galling.
Bilwg, bill-hook, an hedge-bill.
Bîr, beer.
Biswail, cow-dung.
Bitail, victuals.
Bitolws, a bull.
Biw, kine.
Blaen, a point, first; blaena, the first; blaeneu, the farthest part of a country; blaengis, the first assault in battle; blaenor, a ring-leader; blaenrhed, a fore-runner; blaenu, achub y blaen, to possess before, to go before; blaenwedd, blaenwel, the very top or height of a thing.
Blagur, twigs, sprigs; blaguro, to sprout, to branch.
Blaidd, a wolf.
Blâs, a taste.
Blawd, meal; blawd-llîf, sawdust.
Blawdd, quick, nimble, swift, active; commotion, tumult.
Blawr, blawrwyn, grey.
Bleddychfa, the face, countenance.
Bleiddiast, bleiddies, a she-wolf.
Blerwm, blatterer, lip sound.
Blew, hair; blewiach, down; blewog, hairy; blewyna, to glean.
Bliant, fine linen.
Blif, a sling, a battering engine to cast darts or stones, catapult.
Blingo, to flay off the skin.
Blîn, weary, troublesome; blinder, weariness tribulation; blino, to become weary, to vex.
Blisg, shells.
Blith, giving milk; milk.
Blith draphlith, confusedly.
Blochda, cream.
Blodeuyn, a flower, blossom; blodeuog, blossom, flowery.
Blodio, to sprinkle meal; blodiwr, a meal-man; blota, to beg meal.
Bloddest, applause.
Bloedd, shout, cry.
Bloesg, lisping; bloesgni, a lisping, thick utterance.
Bloneg, a swine's grease; bloneg y derw, the sap of oak-trees; blonhegen, a swine's leaf.
Blowmon, a black-a-moor.
Blwch, a box; blychaid, a box-full.
Blwng, angry; blyngawd, angry, hard to be pleased; blynghau, to be angry.
Blwydd, blynedd, blwyddyn, a year.
Blys, longing; blysig, one that longs; blysio, to long for a thing.
Boch, the cheek; bochog, blab-cheeked.
Bochodeg, bychodeg, poor.