It’s
* anti- (against)
* -dis- (reversing)
* -establishment- (having the Church of England be the official state religion)
* -arian- (suffix to make *disestablishmentarians* mean a kind of person)
* -ism (a a principle or policy).
So antidisestablishmentarianism is the attitute the *opposes* the movement to *repeal* the laws that make the COE the state church of the UK.
You can also break down *establishment* into pieces, but that’s historical etymology, not parsing a modern word.
Latest Answers