Now dial. [Of obscure origin: cf. Sw. dial. sprag, spragg(e in the same sense.] A slip; a twig or spray.
1676. Newton, Corr. (1850), 260. We desire graffs rather then sprags.
1895. P. H. Emerson, Birds Norfolk, 81. He alights on the familiar old hawthorn sprag, as the fenmen call a spray.