بَايءِىٌّ

and ↓ بَاوِيٌّ rel. ns. of بَاءٌ and بَا the names of the letter ب; (TA in باب الالف الليّنة;) and ↓ بَيَوِىٌّ is a rel. n. of the same. (M in article ب.)