rare. [f. prec.] intr. (also refl.) To ferment; to be covered with froth, as agitated water. Also fig. Hence Yeasting vbl. sb. and ppl. a.
1819. Keats, Otho, III. ii. To thee only I appeal, Not to thy noble son, whose yeasting youth Will clear itself, and crystal turn again.
1880. Blackmore, Mary Anerley, I. ix. 113. (Like dough before the fire) every well belaboured [bed] tick was left to yeast itself awhile.
1891. C. Dawson, Avonmore, II. 35. Racing seas, with their yeasting waves.
1902. Brit. Med. Jrnl., 14 June, 1463. The presence of purin bodies in beers is probably due to the yeasting and processes of manufacture.
