Here's why:
* Origin: The word "knight" comes from the Old French word "chevalier" which itself came from the Latin "caballarius" meaning "horseman".
* Adaptation: Over time, the French word "chevalier" was adapted into the English word "knight". This adaptation involved sound changes (like the "ch" becoming a "k") and a shift in spelling.
This process of borrowing a word from another language and adapting it to fit English pronunciation and spelling is what defines an Anglicized word.