How to say glasses in classical Chinese?

叆叇, the ancient name for glasses, pronounced "ài dǎi

". This is the Arabic or Persian transliteration of glasses, written as al_unwainat in Arabic and ainak in Persian. In ancient times, there were two words with the same pronunciation as "叏叇", so people borrowed this word as the written language for glasses. "叆叇" originally refers to clouds covering the sun. The third volume of "Sounds and Meanings of All Sutras" says: "Clouds covering the sun are called 叆叇". It can be seen that the original meaning of "叏叇" has nothing to do with glasses. In the early 18th century, Japan also called glasses "叆叇". This was written in the "Japanese and Han Sancai Tuhui" written in 1712. Obviously, this is the name of glasses transferred from China to Japan. In fact, as early as the end of the 15th century, some people had already called them "glasses". Lang Ying of the Ming Dynasty dedicated a section titled "glasses" in the sixth volume of his "Seven Revised Class Drafts". He wrote: "It is rare to hear that noble people have glasses." Lang Ying was born in 1487. When he was young, he heard about "glasses" at the end of the 15th century or the beginning of the 16th century.

So, glasses were originally called 叆叇, but since they had a special Chinese name, they were called glasses.