Departmental means belonging to one department. A departmental meeting, departmental budget, departmental policy.
It marks the boundary of a decision: a departmental matter is one that need not go higher, which is either efficient or a way of keeping something quiet. In universities and civil services it is everyday language — departmental head, departmental review. Note interdepartmental, meaning between departments, which is where most large organisations do their arguing.
1adjectivedepartmentalBelonging to one department.
“The departmental budget covers only the science teachers' needs.”
departmental is a quality of belonging to a department.
French départemental comes from département, from départir, to divide. Depart, part and party come from the same dividing.
French
départemental
English, today
departmental
Borrowed from French départemental. by surface analysis, department + -al. a doublet of départemental.
Etymology from Wiktionary, CC BY-SA