Apposite, or to the purpose.
·adv In a pat manner. II. Pat ·adj Exactly suitable; fit; convenient; timely. III. Pat ·noun A sma...
Webster's Dictionary of the English Language
The palpitation of the heart: as, my heart went pit-a-pat. Pintledy-pantledy; the same. ...
Dictionary of The Vulgar Tongue by Francis Grose