Definition of blanket. 1a : a large usually oblong piece of woven fabric used as a bed coveringb : a similar piece of fabric used as a body covering (as for an animal) a horse blanket.
The word arya was used for people who cultivated the mind and character. The aryans were the inhabitants of Aryavrata(India) and they followed Sanatan Dharma for many lakh years in the past, who spoke Sanskrit and practiced Sanatan culture along the banks of the rivers Saraswati and Sindhu.
Indo-Aryan is a language family from the Indo-European Family, it was considered that all white races were descended from a race of Aryans (late 19th/early 20th century thinking).