I like Merriam-Webster's take on it. "Whenever a word from a foreign language enters English it becomes an English word and gets inflected just like other Engli

I like Merriam-Webster's take on it. "Whenever a word from a foreign language enters English it becomes an English word and gets inflected just like other English words." https://www.youtube.com/watch?v=wFyY2mK8pxk https://www.youtube.com/watch?v=wFyY2mK8pxk In other words, "genuses" is not wrong. http://www.merriam-webster.com/dictionary/genus http://www.merriam-webster.com/dictionary/genus