擦れる

1. ichidan verb, intransitive to rub; to chafe
2. to wear out; to become worn
3. to lose one's innocence; to become sly

かすれる also 掠れる

1. ichidan verb, intransitive, usually in kana to get blurred
2. usually in kana to get hoarse; to get husky
3. usually in kana to graze; to scrape; to touch

こすれる

1. ichidan verb, intransitive to be rubbed