1) a favourite ; a pet lamb ; a petted child, a favourite, humoured, or indulged child. N.
2) in a PET, in an angry mood. North. So PETTISH. Milton uses it to express a fit or humour (Comus.)
·vi To be a pet. II. Pet ·noun A cade lamb; a lamb brought up by hand. III. Pet ·noun A slight fit...
Webster's Dictionary of the English Language
In a pet; in a passion or miff. ...
Dictionary of The Vulgar Tongue by Francis Grose
A tap, or valve on a pump. ...
The Sailor's Word-Book