(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.
In general, specialized disciplines (like law, medicine, science, etc.) tend to also use specialized words. I don’t think English is unique in that regard, other languages do this as well.