IPA: //ˌdʒʌstɪfɪˈkeɪtəri//
KK: /dʒʌstɪfɪˌkeɪtəri/
Relating to or serving as a reason or explanation for something.
The lawyer presented a justificatory argument to support her client's case.
Justificatory → It is formed from "justus" (meaning just or right) and "facere" (meaning to make or do), combined with the suffix "-ory" (meaning relating to or characterized by). The word "justificatory" refers to something that serves to justify or make something right.
Think of 'just' meaning right and 'facere' meaning to make — so something justificatory is something that makes a situation right.