v. Sc. and north. dial. [Cf. G. dial. sottern (also suttern) in the same sense.] intr. To boil slowly, or with a dull sound.
1781. J. Hutton, Tour to Caves (ed. 2), Gloss. 96. Sotter, to make a noise in boiling as any thick substance does.
1808. in Jamieson.
1819. W. Tennant, Papistry Storm’d (1827), 39. The broo boils up wi’ sotterin’ sound.
