This is the 872nd most frequent Japanese word.
べく
"べく" indicates purpose, intention, or necessity, meaning "in order to" or "should."
Here, "べく" is used to signify the action taken with the specific purpose aimed at achieving the stated objective.
問題を解くべく、彼女は図書館で資料を探しました。
To solve the problem, she searched for materials in the library.
In this usage, "べく" again emphasizes the effort directed towards accomplishing the defined goal.
試験に合格すべく、彼は毎日勉強しています。
He studies every day to pass the exam.
In this sentence, "べく" indicates the intention or purpose behind the actions being described, similar to "in order to" in English.