vt to assume, as a character.
2. undertake ·vt to take or have the charge of.
3. undertake ·vi to give a promise or guarantee; to be surety.
4. undertake ·vt to engage with; to attack.
5. undertake ·vt to have knowledge of; to hear.
6. undertake ·vi to venture; to hazard.
7. undertake ·vi to take upon one's self, or assume, any business, duty, or province.
8. undertake ·vt hence, to guarantee; to promise; to affirm.
9. undertake ·vt to take upon one's self; to engage in; to enter upon; to take in hand; to begin to perform; to set about; to attempt.
10. undertake ·vt specifically, to take upon one's self solemnly or expressly; to lay one's self under obligation, or to enter into stipulations, to perform or to execute; to covenant; to contract.