The story
- Ainu · derived fromシコタン
- Japanese · borrowed from色丹
- Russian · borrowed fromШикотан
- English todayShikotan
From Russian Шикотан (Šikotan) and Japanese 色丹, both from Ainu シコタン, from シ + コタン (“settlement, island”).
Etymology from Wiktionary, CC BY-SA 4.0.