warrant
Old Frenchauthorize, justify, guarantee
About This Root
From Old French warant (a protector, guarantee), from Frankish *warand (to authorize). The root centers on authorization and assurance: warrant (legal authorization or justification), warranty (a guarantee of quality), warrantable (justifiable), and guarantee (a doublet that entered through a different French dialect). Unwarranted means without justification — unauthorized or unjustified.
Associated Words · 6
guarantee
A formal promise that something will happen or work correctly; to give such a promise
warrant
An official authorization or court order; to justify or guarantee
warranty
A guarantee that a product will meet certain standards or be repaired
unwarranted
Not justified or authorized; lacking a reasonable basis
warrantable
Able to be justified or authorized
warranted
Justified, necessary, or officially authorized