Dean comes from an English surname, either a locational name meaning “valley” via Old English dene (valley), or an occupational name for someone who worked for a dean, the head of an ecclesiastical head of a cathedral. It comes from Latin decānus (chief of ten people) via decem (ten), which ultimately derives from a PIE root word.
A dean is also the head of a college or university, or someone in charge of a department or faculty.
Dean could also be used as a variant spelling of Deen or Dīn (دين), an Arabic male name meaning “religion, faith, creed” and “way of life” as well as having roots in Hebrew dinדִּין meaning “law, judgment”, which seems to be derived from a Proto-Semitic origin.
Origin: Proto-Indo-European; Proto-Semitic
Meaning: an English surname “valley” or “chief of ten”; from Arabic “religion, faith, creed” or “way of life”; also from Hebrew “law, judgment”
Daniel is the name of several figures in the Bible, including the prophet Daniel, who features in the Book of Daniel in the Old Testament. It comes from a Hebrew name meaning “God is my judge” or “judge of God”, made up of Hebrew danדָּן (to judge) and elאֵל (god).
Daniel is also a surname originating from the given name.