by-law

Từ điển Oxford Advanced Learner 8th

ˈby-law [by-law by-laws] BrE NAmE (also ˈbye-law) noun
1. (BrE)a law that is made by a local authority and that applies only to that area
2. (NAmE)a law or rule of a club or company
See also: ↑bye-law

Word Origin:
Middle English: probably from obsolete byrlaw ‘local law or custom’, from Old Norse býjar, genitive singular of býr ‘town’, but associated with ↑by.