In order to make some sense of these questions, I undertook a Taxonomy of American Ignorance and Misperceptions.
At his advisers' urging, he undertook a gradual and carefully orchestrated campaign to undo the damage.
Only they can stop this nonsense, and it will take an effort as concerted and well-organized as the one they undertook in the 70s.
c.1200, "to entrap," in the same sense as Old English underniman (cf. Dutch ondernemen, German unternehmen), of which it is a partial loan-translation, from under + take. Cf. also French entreprendre "to undertake," from entre "between, among" + prendre "to take." The under in this word may be the same one that also may form the first element of understand. Meaning "to accept" is attested from mid-13c.; that of "to take upon oneself, to accept the duty of" is from c.1300.