Piatt Family History
Piatt Name Meaning
Altered form of French and Walloon Piat: from the personal name Piat from the Latin name Piatus ‘expiated’ (from the past participle of the verb pio ‘to appease; to expiate’). The name was borne by Saint Piatus of Tournai (in Wallonia Belgium) who was martyred under the Roman Emperor Maximian c. 286
Source: Dictionary of American Family Names 2nd edition, 2022