promulgate
verb [ T ] formal uk/ˈprɒm.əl.ɡeɪt/ us/ˈprɑː.məl.ɡeɪt/
(SPREAD) 传播，宣扬（思想或信仰）to spread beliefs or ideas among a lot of people
(ANNOUNCE) 颁布，公布（尤指新法律）to announce something publicly, especially a new law
The new law was finally promulgated in the autumn of last year. 新法律最终于去年秋天颁布。
Related word: promulgation