undertake

To deliberately begin to do (something).

To pledge or commit oneself (to do something).

To promise or guarantee.

To make oneself responsible. Used with for.

To take on one’s self; often, to take formally or expressly on one’s self; lay one’s self under obligations or enter into stipulations to perform or execute; pledge one’s self to.

To engage in; enter upon; take in hand; begin to perform; set about; attempt; essay.

To warrant; answer for; guarantee; affirm: especially with a following clause.

To take in; hear; understand; have knowledge of. To assume, as a character.

To engage with; have to do with; attack.

To have the charge of.