a person or store selling paper, pens, and other writing and office materials."cards can either be bought from a stationer or made out of ordinary file paper"
Why is stationery called stationery?
It derives from the word 'stationer', meaning a seller of books and paper – the products that would come to be known simply as stationery. The origin of the word stationery lies in the Middle English and Anglo-Norman 'estacioun' and 'estation' meaning a post or position.
stationarius: tradesman at a fixed location, i.e. not itinerant
What is the plural of stationery?
The noun stationery can be countable or uncountable. In more general, commonly used, contexts, the plural form will also be stationery. However, in more specific contexts, the plural form can also be stationeries e.g. in reference to various types of stationeries or a collection of stationeries.