Wikipedia
Panagiotis or Panayiotis , "Παν" (all) "άγιος" (holy or saint) suffix "-της" (which can mean "of the"), is a common male Greek name. It derives from the Greek epithet Panagia or Panayia ("All-Holy") for the Virgin Mary, the mother of Jesus. The feminine form of the name is Panagiota or Panayiota (Παναγιὡτα). Both share the name day with Maria, Mario, Mary, Despoina (or Despina) and all their diminutives on the Dormition of the Theotokos on 15 August. There are many diminutives of Panagiotis such as Panos (Πάνος), Panagis/Panayis (Παναγής), Takis (Τάκης, from the diminutive Panagiotakis or Panayiotakis), Panikos (Πανίκος, in Cyprus), while Panagiota or Panayiota is commonly reduced to Giota or Yiota (Γιώτα).