One name, carried to different things. Mohawk begins as the name of a people living in the Mohawk River valley. From that one name everything else follows: one person of that people, the language they speak, and — written with a small m — a haircut that English calls by the same name. When you meet the word, the first question is not what does it mean but which of these it is pointing at, and the capital letter is usually the clue.
From the word’s history
The name came into English through Dutch, and is probably an exonym — a name given from outside — going back to a Narragansett word. The Mohawk language itself has no m sound, and the people's own name for themselves is Kanienʼkehá꞉ka, so the English name was never theirs to begin with.
這個名字是經由荷蘭文進入英文的，來源可能是 Narragansett 語，也就是別人給的稱呼。莫霍克語本身沒有 m 這個音，族人自己的名字是 Kanienʼkehá꞉ka。所以英文裡的 Mohawk 一開始就不是族人自己的說法。
Wiktionary, "Mohawk"
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