Cervical has multiple meanings in the human body. The word cervix is derived from the Latin root word cervix which means neck. For this reason, the word cervical pertains to many areas where tissues narrow to a neck-like passage, and not only in your neck.
Cay /cay/ [1 syll.] as a name for girls is of Greek derivation, and Cay means pure. Cay is a variant transcription of Catherine (Greek): from katharos. Cay is also a derivative of Katherine (Greek).
A body of water partially enclosed by land but with a wide mouth, affording access to the sea: the Bay of Biscay. 2. An area of land, such as an arm of prairie partially enclosed by woodland, that resembles in shape or formation a partially enclosed body of water.