Shab
Shab , noun
[Old English shabbe, Anglo-Saxon sc{not transcribed}b. See Scab.]
The itch in animals; also, a scab. [Obsolete or Provincial English]
Shab , transitive verb
[See Scab, 3.]
To play mean tricks; to act shabbily. [Obsolete or Provincial English]
Shab , transitive verb
To scratch; to rub. [Obsolete] — Farquhar