1) Hebrew boy name 
[given name] Shabtai (Sabbatai, Sabbathai, Shabbatai, Shabbethai, etc. שבתאי or שבתי) is a Jewish masculine name. According to Encyclopaedia Biblica, as the name stands, it might mean one born on the Sabbath. Most probably, however, the name is a modification of the ethnic Zephathi, `Zephathite` (=Zarephathi, `Zarephatite`). A Baby...