Webster's Revised Unabridged Dictionary · 1913

Sheal

Sheal , noun

Same as Sheeling. [Scottish]

Sheal , transitive verb

To put under a sheal or shelter. [Scottish]

Sheal , transitive verb

[See Shell.]

To take the husks or pods off from; to shell; to empty of its contents, as a husk or a pod. [Obsolete or Provincial English & Scottish] — Jamieson
That's a shealed peascod. — Shakespeare

Sheal , noun

A shell or pod. [Obsolete or Provincial English]