/ dɪˈzaɪərəs; NAmE / adjective
[ not before noun ] ~ (of sth / of doing sth) | ~ (to do sth) ( formal ) having a wish for sth; wanting sth :
At that point Franco was desirous of prolonging the war.
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WORD ORIGIN
Middle English : from Old French desireus , based on Latin desiderare to desire, perhaps from de- down + sidus , sider- star.