FOR
REAL: Chelsea is an English place name meaning "chalk landing place." As a name, it has been used since the mid 20th century, with a big leap in popularity in the early 80s, probably due to the name of Jane Fonda's character in the film On Golden Pond.
diminutives: Chel
other recorded spellings: Chelsey, Chelsie, Chelsy, Chelsi, Chelsee, Chelse