1650s, "the enacting of laws," from French législation (14c.), from Late Latin legislationem (nominative legislatio), properly two words, legis latio, "a proposing (literally 'bearing') of a law;" see legislator. Meaning "the product of legislative action" is from 1838.
legible
legicide
legion
legionnaire
legislate
legislation
legislative
legislator
legislature
legit
legitimacy