**Antiquarian** (from Latin *antiquus*, meaning «ancient») is an adjective that describes something related to ancient objects, literature, or research. Here are some examples of using this word in English:
1. The antiquarian bookshop was filled with rare and antique books, attracting collectors and scholars from all over the world.
2. She decided to specialize in antiquarian studies and began researching old manuscripts and documents at the library.
3. The museum's antiquarian collection includes a variety of artifacts from different civilizations, such as ancient coins, pottery, and jewelry.
4. He was an avid antiquarian and spent his weekends searching for old books and manuscripts in antique shops and flea markets.
5. The professor gave a lecture on the history of antiquarian books and discussed the importance of preserving and studying them.
6. The antiquarian society organized an exhibition showcasing rare artifacts and documents from the Middle Ages.
7. She wrote a book on the history of antiquarian collecting and its influence on modern culture.
8. The auction house specializes in selling antiquarian items, such as old furniture, paintings, and decorative arts.
9. They founded an online platform where antiquarian enthusiasts can exchange information and share their finds.
10. The university's library has a special section dedicated to antiquarian studies, where researchers can access rare books and manuscripts.