Germanic
Latin
Greek
Celtic
Germanic Latin Greek Celtic
There are far more than three major language families, but for sheer population, they would probably be Indo-European, Sino-Tibetan, and Afro-Asiatic.
Language families are groups of related languages that descend from a common ancestor language. Examples include the Indo-European, Afro-Asiatic, and Turko-Altaic language families.
The language that is not an Indo-European language is Japanese.
The major language of the Aryans was Sanskrit. It is an ancient Indo-European language and is considered the liturgical language of Hinduism.
Yes, Armenian is an Indo-European language.
Yes, Russian is an Indo-European language.
Yes, Hindi is an Indo-European language. It belongs to the Indo-Iranian branch of the Indo-European language family and is spoken by a large population primarily in India.
Yes, Russian is an Indo-European language belonging to the Slavic family.
Yes, Russian is an Indo-European language. It belongs to the East Slavic branch of the Indo-European language family.
There is no Proto-Indo-European language group. Proto-Indo-European, or PIE, is the hypothetical root language from which Indo-European languages today (and others that are extinct) descend.
No, Arabic is not an Indo-European language. It belongs to the Semitic language family.