List of English-language idioms of the 19th century
This is a list of idioms that were recognizable to literate people in the late-19th century, and have become unfamiliar since. As the article list of idioms in the English language notes, a list of idioms can be useful, since the meaning of an idiom cannot be deduced by knowing the meaning of its constituent words.
Source: Wikipedia — List of English-language idioms of the 19th century (CC BY-SA 4.0)