the.com/aide

means A person employed to assist someone, especially in a professional, political, or military role, handling tasks on their behalf.

from Borrowed from French aide ('help, assistant'), from the verb aider, 'to help,' which traces back to Latin adiutare, an intensive form of adiuvare ('to give aid to'), built from ad- ('toward') plus iuvare ('to help'). The military sense of 'aide-de-camp' — literally 'helper of the camp' — entered English in the 1600s–1700s and helped cement 'aide' as the word for the indispensable right hand standing just behind the person with the title.