Derived from Sarah, meaning princess
Saily is a modern diminutive or variant of the name Sally, which itself originated as a pet form of the Hebrew name Sarah. It carries the traditional meaning of princess or noblewoman but with a contemporary, phonetic spelling twist.
Less common today
Saily isn't in the latest US Top 1000. It last peaked at #9,344 in 2009.
US births per 5-year period, 1990βpresent (SSA data).