to overcome with fear; intimidate: to daunt one's adversaries.
2.
to lessen the courage of; dishearten: Don't be daunted by the amount of work still to be done.
Origin: 1250–1300; Middle English da(u)nten < Anglo-French da(u)nter,Old French danter, alteration of donter (probably by influence of dangier power, authority; see danger) < Latin domitāre to tame, derivative of domitus, past participle of domāre to tame
c.1300, from O.Fr. danter, var. of donter, from L. domitare, freq. of domare "to tame" (see tame). Originally "to vanquish;" sense of "to intimidate" is from late 15c.