The name Zain has its origins in the Arabic language and is derived from the word "zain," which means "beauty" or "adornment." It is believed to have been in use since the 7th century AD, during the early days of Islam.

The name Zain is closely associated with the Islamic faith and is mentioned in the Quran, the holy book of Islam. In Chapter 20, Verse 88, the Quran refers to the "Calf of Gold" as "zainah," which is a derivative of the word "zain."

One of the earliest recorded examples of the name Zain can be found in the writings of the famous Arab scholar and philosopher Al-Ghazali (1058-1111 AD). He mentioned the name in his work "Ihya Ulum al-Din" (The Revival of the Religious Sciences).

Throughout history, several notable figures have borne the name Zain. One of the most famous was Zain al-Din al-Amili (1501-1588), a prominent Shia scholar and philosopher from present-day Lebanon. He wrote numerous works on Islamic theology and jurisprudence, and his teachings had a significant influence on the Shia Islamic tradition.

Another notable figure was Zain al-Abidin (659-713 AD), the fourth Imam of the Shia Muslims and a grandson of the Prophet Muhammad. He was known for his piety, wisdom, and dedication to Islamic teachings.

In the realm of literature, Zain al-Din al-Hafiz (1325-1390) was a renowned Persian poet and mystic from Shiraz, Iran. His works, including the famous "Divan-e Hafez," are considered among the greatest masterpieces of Persian literature.

A more contemporary figure was Zain al-Abidin Tawfiq (1888-1914), an Egyptian poet and journalist who played a significant role in the literary renaissance of the early 20th century in Egypt.

Another notable bearer of the name was Zain al-Abidin (1835-1908), the Sultan of Pahang, a state in Malaysia, from 1888 to 1908. He was known for his efforts to modernize and develop his kingdom during his reign.