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…the ceremony in the Catholic Church whereby a person receives the habit of a religious order at the beginning of their monastic life. It was previously called the vestitio or susceptio in Latin. The habit of wearing monastic clothes was a sign of consecration from ancient times, but after a certain period of aspirantship, it became customary for monks to wear them before beginning their novitiate. In the case of female monastic orders, it also became customary for them to dress elegantly as if for a wedding, and then change into their habit. …

*Some of the terminology explanations that mention "vestitio" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…カトリック教会で，修道生活の初めに，その修道会の修道服を受ける儀式。従来はラテン語でvestitio,susceptioとも呼ばれた。修道服は古来，奉献のしるしであったが，一定の志願期の後，修練を始める前に着衣する習慣が起こり，女子修道会の場合，結婚式になぞらえて華麗に装った後，修道服に着替えるような習慣もできた。…

※「vestitio」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報