UNDERTAKING - An engagement by
one of the parties to a contract to the other, and
not the mutual engagement of the parties to each other;
a promise.
UNDERTOOK - Assumed; promised.
This is a technical word which ought to be inserted
in every declaration of assumpsit, charging that the
defendant undertook to perform the promise which is
the foundation of the suit; and this though the promise
be founded on a legal liability, or would be implied
in evidence.