This is the 9917th most frequent Japanese word.
講じ
"講じ" means "to take measures" or "to devise."
Here, '講じた' (koujita) is used in the sense of taking measures or actions to address an issue.
彼は問題解決のために適切な措置を講じた。
He took appropriate measures to solve the problem.
In this sentence, '講じる' (koujiru) refers to implementing or applying methods or strategies.
その講師は新しい指導方法を講じることを決めた。
The lecturer decided to implement new teaching methods.
'講じる' (koujiru) is used here to mean enacting or putting policies into practice.