Attempt
Part of speech: noun
Definition: The action of trying at something. An assault or attack.
Part of speech: verb
Definition: To try.
Example sentence: A man watches his pear tree day after day, impatient for the ripening of the fruit. Let him attempt to force the process, and he may spoil both fruit and tree. But let him patiently wait, and the ripe pear at length falls into his lap.
Undertake
Part of speech: verb
Definition: To take upon oneself; to start, to embark on (a specific task etc.).To commit oneself (to an obligation, activity etc.).to overtake on the wrong side.To pledge; to assert, assure; to dare say.To take by trickery; to trap, to seize upon.