What does the noun brychan refer?

"Brychan" is not a common noun in English. It is likely a Welsh word, and its meaning depends on the context.

Here are some possibilities:

* A personal name: "Brychan" is a Welsh masculine name, possibly referring to a person.

* A place name: "Brychan" could refer to a place in Wales, such as a town, village, or geographical feature.

* A specific object or concept: It could be a Welsh word for a specific object or concept that doesn't have a direct English equivalent.

To understand the exact meaning, please provide more context:

* Where did you encounter the word "brychan"?

* What was the surrounding text or conversation?

With more information, I can help you understand the meaning of "brychan" more accurately.