1. To take on an obligation or task (he has undertaken to chair the committee on legal aid for the homeless).
2. To give a formal promise; guarantee (the merchant undertook that the goods were waterproof).
3. To act as surety for (another); to make oneself responsible for (a person, fact, or the like) (her husband undertook for her appearance in court). [Cases: Undertakings
1. C.J.S. Undertakings § 1.]
