1791, "pertaining to a (French) department, pertaining to a division of a country," from French départmental, from département (see department). Meaning "of departmental systems generally" from 1832. Related: Departmentally.
departmental policy
deoxy-
deoxyribonucleic
deoxyribose
depart
department
departmental
departure
depeche
depend
dependable
dependance