Cassidee as a Baby Name. Meaning and Origin of Cassidee

What is the meaning of the name Cassidee ?

The baby name Cassidee is a Unisex name , 3 syllables long and is pronounced KAS-i-dee (IPA: /ˈkæsɪdi/).

Cassidee is Irish in Origin.

Cassidee is a modern respelling of Cassidy, an Irish surname-turned-given name from Ó Caiside, “descendant of Caiside.” The underlying Gaelic personal name likely derives from cas, “curly” or “twisted,” yielding the traditional gloss “curly(-haired).” The Ó Caiside were a learned family of physicians and poets in medieval Fermanagh, which helped preserve the surname in historical records. As a given name, the sound-alike cadence with familiar nicknames Cass and Cassie contributes to its easy wear.

Usage in the English-speaking world rose in the late 20th century amid the broader trend of adopting surnames as first names; pop-cultural nods like the Grateful Dead song “Cassidy” (1972) also boosted visibility. Cassidee keeps the same pronunciation as Cassidy while emphasizing the long -ee ending. Related forms include Cassidy, Cassidi, Cassidey, Cassadee, and the K-variants Kassidy, Kassidi, and Kassidee.