English word administrative comes from English administrate, English -ive

Detailed word origin of administrative

Dictionary entry	Language	Definition
administrate	English (eng)	(computing) the act or function of providing maintenance and general housekeeping for computer systems, networks, peripheral equipment, etc.. To administer.
-ive	English (eng)	An adjective suffix signifying relating or belonging to, of the nature of, tending to; as affirmative, active, conclusive, corrective, diminutive.
administrative	English (eng)	Of or relating to administering or administration.

Words with the same origin as administrative