質問: I know plenty of Japanese words that came from English and a few from other European languages (obviously tons from Chinese), but what about words from Japan's indigenous languages such as Ainu? Also if there are any are they all written in kana like the newer borrowed words?
回答: What I think common from them is トナカイ、ラッコ、シシャモ、ノンノ ref: 日本語に溶け込んだアイヌ語