(non-native speaker)
Is there a reason why the English language has “special” words for a specific topic, like related to court (plaintiff, defendant, warrant, litigation), elections/voting (snap election, casting a ballot)?
And in other cases seems lazy, like firefighter, firetruck, homelessness (my favorite), mother-in-law, newspaper.
A lot of them haven’t changed much in the last few centuries either. Law is a pretty arcane thing. I also suspect they don’t want most people to understand it too well. If the legal system is a confusing, overcomplicated, bureaucratic nightmare, then the lawyers will always have job security and charge stupidly high rates for their work.