There is a word
イレーザー, which means 'eraser'. I suspect this comes from the English word
eraser. But the "s" sound in
eraser is not voiced in American English, and a closer approximation in kana will be
イレーサー. How did it become voiced as
Edit: After fefe's answer, it turned out I was wrong in writing that "s" is not voiced in English. It turned out to be true for American English.