Meaning: Its source is an Aramaic expression meaning "Heart."

Languages: This girl's name is used in Polish.

Narrative: This is the feminine form of Thaddaios, equivalent to the English Thaddeus. Though clearly originating as a byname for one of the followers of Jesus in the Christian scriptures, the name's origin and meaning are disputed. Some authorities believe it is a form of the Greek Theodorus, meaning ''God's gift.''