Bach-e-lor, anweddog; gwryf
Back-slid-ing, gwrthgiliad; gwrthgiliol
Bal-co-ny, balcawd, murdalffen
Ban-dit-ti, ysbeilwyr, ysbeildorf
Ban-ish-ment, alltudiaeth; deoliad
Bar-ba-rism, barbariaith; annysg, anfoes
Bar-ba-rous, barbaraidd; difoes
Bar-ren-ness, anffrwythlondeb; diepiledd
Bar-ri-cade, brysgaer; attalgaer: attalgau
Bar-ri-er, attalgaer; terfyn