The use of the word in its modern sense is a modern development. It was used before, but to signify different things. In other words, while the samurai had conc

The use of the word in its modern sense is a modern development. It was used before, but to signify different things. In other words, while the samurai had concepts about the warrior ethos, which they may have called bushido (among other things), the concepts they understood and wrote about were different from the concept of bushido espoused by Nitobe Inazo, who was criticized for being ahistorical by his Japanese contemporaries.