administrant
/ədˈmɪnɪstr(ə)nt/adjective
That administers (something); acting in the capacity of a minister or administrator. Now rare.
noun
1A person who administers something; an administrator.
2 Christian Church. A person who administers a sacrament, especially communion.
Origin
Early 17th century; earliest use found in William Segar (d. 1633), herald. Partly from French administrant, present participle of administrer, also used as noun in sense ‘person who ministers to, who serves’, and partly from classical Latin administrant-, administrāns, present participle of administrāre, in post-classical Latin also used as noun in sense ‘person who administers, administrator’.