Providing help or assistance; serving in a supporting or auxiliary role.
From Latin adjutōrius, derived from adjuvāre (to help, aid), combining ad- (to) + juvāre (to help). The suffix -ous makes it an adjective meaning 'characterized by' or 'having the quality of.'
This word is almost extinct in modern English, but it captures the Roman military concept of 'auxiliary' troops—soldiers who helped the main legions. You can see the same Latin root in 'adjuvant,' a medical term still used today for substances that boost immune response.
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