Storekeeper (noun)

A person who is in charge of a store or shop and responsible for managing its inventory and sales.

Origin:

From the early 15th century store + keeper.

Examples:

1. The storekeeper greeted me warmly as I walked into the shop.
2. I asked the storekeeper if they had any pencils in stock.
3. The storekeeper was busy counting the day's takings when I entered the shop.
4. I had a long conversation with the storekeeper about her favorite books.
5. The storekeeper helped me to find the item I was looking for in the store.