dial. [Origin obscure. Cf. SWAD sb.3] A bean- or pea-shell.

1

1659.  Torriano, The swab (or cod, of beanes pease, &c.), scaffa, guscio [cf. Guscio … swad].

2

1706.  Phillips (ed. Kersey), Swab, a Cod of Beans.

3

1825–80.  Jamieson, Swab, the husk of the pea; pease swabs.

4