Watchful or alert
Caysie is a modern phonetic spelling of the Irish surname Casey, derived from the Gaelic 'O Cathasaigh'. It traditionally signifies one who is vigilant or watchful. This particular spelling variation adds a contemporary, feminine flair to a classic surname-name.
Less common today
Caysie isn't in the latest US Top 1000. It last peaked at #7,811 in 2000.
A character in the animated series · The Backyardigans
US births per 5-year period, 1990–present (SSA data).
