Arabic is not a major classical language, as it is a relatively young language that developed in the 6th century CE.

Sanskrit is the oldest major classical language, with its origins dating back to around 1500 BCE.

Greek is the only major classical language that is still spoken today, with around 13 million native speakers.

Latin was the language of the Roman Empire, and it is still used today in the Roman Catholic Church.

Greek was the language of the ancient Greek philosophers, and it is still used today in academic and philosophical discourse.

Sanskrit was the language of the ancient Indian scriptures, and it is still used today in religious and academic contexts.

Hebrew was the language of the ancient Hebrew Bible, and it is still used today in religious and academic contexts.

Hebrew is the only major classical language that is written from right to left.

Greek has the largest number of speakers today, with around 13 million native speakers.

Latin is the most widely studied major classical language today, due to its historical and cultural significance.

Latin is the most closely related to English, as English is a Germanic language that has borrowed many words from Latin.

Hindi is the most closely related to Sanskrit, as both languages are members of the Indo-Aryan branch of the Indo-European language family.

Armenian is the most closely related to Greek, as both languages are members of the Hellenic branch of the Indo-European language family.

Arabic is the most closely related to Hebrew, as both languages are members of the Semitic branch of the Afro-Asiatic language family.

French is the most closely related to Latin, as both languages are members of the Romance branch of the Indo-European language family.