consuetuden.
英 'kɒnswɪtjuːd | 美 'kɑnswɪ,tjʊd
中文n. 习俗；惯例
词根词源
consuetude (n.)late 14c., from Middle French consuetude, from Latin consuetudo, from consuetus, past participle of consuescere "to accustom" (see custom).
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