IPA: /dɪˈreɪndʒ/
KK: /dɪˈreɪndʒ/
To disturb someone's mind or to disrupt the normal order of something.
The loud noise seemed to derange her concentration while studying.
Past: deranged
Past Participle: deranged
Derange → It is formed from "de-" (meaning down or away) and "range" (from Old French *rengier*, meaning to arrange or put in order). The word "derange" means to disturb the order or arrangement of something, leading to confusion or disorder.
Think of something being taken 'away' ('de-') from its 'arrangement' ('range') — that's why derange means to disturb the order.