noun, plural man·da·tar·ies.

a person or nation holding a mandate.

Also mandatory.

Origin of mandatary

First recorded in 1605–15, mandatary is from the Late Latin word mandātārius one to whom a charge is given. See mandate, -ary Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for mandatary

Historical Examples of mandatary

Word Origin and History for mandatary

"person to whom a mandate has been given," 1610s, from Latin mandatarius "one to whom a charge or commission has been given," from mandatus, past participle of mandare (see mandate (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper