Repair
noun, verbal noun, の adjective
Discipline is the reason why you're able to do a repair on things. It takes a lot of time to fix something, and takes a lot of studying. That discipline is what you need, and you have it. Thus, it was repaired!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
「おい、修理屋。これはすぐに直せるか？」「って、君たちの関係ってこと？悪いけど、それはできないよ。」
"Hey, repairman. Can you fix this right now?" "You mean, you guys’ relationship? Sorry. No can do."