attempt

(noun): The action of trying at something.
(noun): An assault or attack, especially an assassination attempt.
(verb): To try.
(verb): To try to move, by entreaty, by afflictions, or by temptations; to tempt.
(verb): To try to win, subdue, or overcome.
(verb): To attack; to make an effort or attack upon; to try to take by force.

It was worth the attempt.
1584 No man can charge us of any attempt against the realm. (Allen's Defence Of English Catholics, cited after Edinburgh review 1883, p. 378)
A group of 80 budding mountaineers attempted Kilimanjaro, but 30 of them didn't make it to the top.
one who attempts the virtue of a woman
to attempt the enemy's camp