verb (used with object),au·thor·ized,au·thor·iz·ing.
to give authority or official power to; empower: to authorize an employee to sign purchase orders.
to give authority for; formally sanction (an act or proceeding): Congress authorized the new tax on tobacco.
to establish by authority or usage: an arrangement long authorized by etiquette books.
to afford a ground for; warrant; justify.
Also especially British, au·thor·ise.
Origin of authorize
1350–1400; earlier auctorize < Medieval Latinauctōrizāre; replacing Middle Englishautorisen < Middle Frenchautoriser < Medieval Latin See author, -ize
Related formsau·thor·iz·a·ble, adjectiveau·thor·iz·er, nounde·au·thor·ize, verb (used with object),de·au·thor·ized,de·au·thor·iz·ing.mis·au·thor·ize, verb (used with object),mis·au·thor·ized,mis·au·thor·iz·ing.pre·au·thor·ize, verb (used with object),pre·au·thor·ized,pre·au·thor·iz·ing.re·au·thor·ize, verb (used with object),re·au·thor·ized,re·au·thor·iz·ing.self-au·thor·iz·ing, adjective
chiefly British English spelling of authorize (q.v.); for suffix, see -ize. Related: Authorised; authorising.
"give formal approval to," late 14c., autorisen, from Old French autoriser "authorize, give authority to" (12c.), from Medieval Latin auctorizare, from auctor (see author (n.)). Modern spelling from 16c. Related: Authorized; authorizing.