Derived from Welsh cad "battle". This was the name of a 6th-century Welsh saint who was martyred by the Saxons. Home » Names.
Killian or Cillian, as a given name, is an Anglicized version of the Irish name CillÃn. ... The most likely meaning of the name is "little church", a reference to someone prayerful or spiritual, cill meaning "church" in Gaelic while the suffix "-Ãn" is used affectionately to indicate a 'pet' or diminutive status.
