Ciera Is A Feminine Name Of Irish And Spanish Origin Meaning “black,” “saw,” Or “mountain.” In Irish, It Is Derived From The Name Ciara Which Comes From The Irish Word ciar, Meaning “black”—referring To Those With Dark Or Black Hair. It Also Comes From The Spanish Name Sierra A Word Used To Denote Saw-toothed Mountain Ranges, Making Ciera An Endearing Moniker For Your Rapidly Growing Baby.