Other forms: legislations
Legislation is laws taken together, as written and passed. New legislation, under the legislation, primary legislation.
It is uncountable: a piece of legislation, not a legislation. Primary legislation is Acts of Parliament; secondary or delegated legislation is the detailed rules made under them, and there is a great deal more of the second than the first. Note legislate, legislature and legislator; and that legislation is what is passed while regulation is often what actually reaches people.
1nounlegislationLaws taken together, as written and passed.
“The government passed new legislation to protect workers' rights.”
legislation is written law.
Latin legislatio is lex, a law, plus latio, a carrying or proposing — from ferre, to bear. A legislator is literally a law-bearer, somebody who carries a proposal in.
Latin
lēgislātiō — the giving of the law
English, today
legislation
From Latin lēgislātiō (“the giving of the law”). Morphologically legislate + ion.
Etymology from Wiktionary, CC BY-SA