IPA: //ədˈmɪnɪˌstreɪt//
KK: /ədˈmɪnɪˌstreɪt/
To manage or be responsible for the operation of something, such as an organization or a process.
She was hired to administrate the new project effectively.
Past: administrated
Past Participle: administrated
Administrate is formed from "ad-" (meaning to) and "ministrare" (meaning to serve or manage). The word refers to the act of managing or serving in a position of authority.
Think of 'serving' ('ministrare') in a role 'to' ('ad-') manage things — that's what administrate means.