dis- + order

source: Anime and Mental Health: The Connection » Yatta-Tachi

a state of confusion:

(状況･状態などの)混乱, 乱雑(confusion)

e.g. tiresome days of mess and disorder.

the disruption of peaceful and law-abiding behavior:

(主に政治･社会の)無秩序; 騒動, 暴動

e.g. recurrent food crises led to periodic outbreaks of disorder.

Medicine a disruption of normal physical or mental functions; a disease or abnormal condition:

(心身の)不調, 異常, (軽い)病気

e.g. eating disorders

e.g. an improved understanding of mental disorder.

verb with object (usually as adjective disordered)

disrupt the systematic functioning or neat arrangement of:

…を混乱させる, 乱す

e.g. she went to comb her disordered hair

e.g. his sleep is disordered.

Medicine disrupt the healthy or normal functioning of:

〈心身〉を不調にする, 病気にする.

e.g. a patient who is mentally disordered.

late 15th century (as a verb): alteration, influenced by order, of earlier disordain, from Old French desordener, ultimately based on Latin ordinare ‘ordain’.