Slender or a variant of the surname Kaylor
Caylor is a rare surname-turned-given-name. It is often considered a variant of the German surname Kaylor, which can mean 'key maker', or it may be used as a modern phonetic blend of names like Caleb and Taylor. In some contexts, it is associated with the Irish name Caoil, meaning 'slender'.
Less common today
Caylor isn't in the latest US Top 1000. It last peaked at #5,417 in 1994.
US births per 5-year period, 1990βpresent (SSA data).