==Unclear explanation== 
 Right in the first section: "[...]Polish kawaler for modern knights and rycerz for medieval knights,[...]". What is a modern knight? I don't get it. Besides this, I think the whole stuff explaining the word "knight" in other languages should be in the "Etymology"-section and not in the introduction. If I want to learn about knights, the first thing I wanna read is definitely not the word for knight in 20 other languages.