Established custom or usage.
Origin of consuetude
- Middle English from Latin cōnsuētūdō custom
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle French consuetude, from Latin cōnsuētūdō (“custom”), from cōnsuēscō (“accustom, habituate; accustom oneself”), corresponding to con- (“with”) + suēscō (“become accustomed”).