Jacek Family History
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Jacek Name Meaning
Polish: from the personal name Jacek, a pet form of Jacenty (Latin Hyacinthus, Greek Hyakinthos). The personal name was popularized in Poland through the cult of St. Jacek, a 13th-century apostle and missionary who was sent to Kraków, where he established a Dominican friary. Compare Spanish Jacinto, Italian Giacinto.
Source: Dictionary of American Family Names ©2013, Oxford University Press