Agios

Agios, plural Agioi (Άγιοι), transcribes masculine gender Greek words meaning 'sacred' or 'saint'. It is frequently shortened in colloquial language to Ai. In polytonic script it is written Hagios (Ἅγιος). It is also transliterated as, among other things, Haghios, Ayios, Aghios in the singular form, and Haghioi, Ayioi, Aghioi, Ayii in the plural. (Wikipedia)