Á-biterian

According to the Old English Dictionary:

, -bitrian.

á-biterian

I. to grow bitter :-- Ábiteraþ se líchoma eall, Lch. ii. 10, 15 : 106, 22. On ðám magan se mete ábiteraþ, 160, 1. Ábitriaþ (-biteriaþ, Hat. MS.) ðá bléda fructus amarescit, Past. 340, 24. II. to matte bitter, to embitter, exasperate :-- Exasperat .i. sevit, provocat vel ábiterie, Wrt. Voc. ii. 144, 60. a-biterian