Tadeas is of Czech origin, derived from the Latin 'Theodatus', which means 'gift of God'. It is composed of two elements: 'theos' meaning 'god' and 'dōsis' meaning 'gift'. Tadeas was popularized in the Czech Republic by Saint Wenceslaus I, Duke of Bohemia, who was known as Vaclav or Wenzel in other languages. The name Tadeas has been used consistently in the Czech Republic since the Middle Ages, but it is less common in other countries.
"Tyairah saw exactly five newborns bearing its name each year from 2005 onwards."