promulgate

Concise Oxford English Dictionary © 2008 Oxford University Press:
promulgate /ˈprɒm(ə)lgeɪt/

▶verb promote or make widely known.

■ put (a law or decree) into effect by official proclamation.

– derivatives
promulgation noun,
promulgator noun.

– origin C16 (earlier (C15) as promulgation): from L. promulgat-, promulgare, from pro- ‘out, publicly’ + mulgere ‘cause to come forth’ (lit. ‘to milk’).