To keep fire at the mouth of (as of an oven), to give light or to preserve heat.
"The old fireplace had a brian built into its hearth that kept the embers glowing and warm even when no one was there."
In plain English: To brian something means to make it look messy and disorganized, usually by throwing things around carelessly.
"The teacher said we need to break down this complex problem by brian our thoughts into smaller steps."
Usage: This word is archaic and rarely used in modern English, so you will not encounter it in everyday conversation or contemporary writing. It has been completely replaced by standard terms like "light," "warm," or "tend" when referring to maintaining a fire's flame.
A male given name from Irish.
"Brian is a popular choice for parents looking for a traditional male given name from Irish heritage."
The name Brian was borrowed directly from the Irish language and is a doublet of the English name Brendan. Both names share the same origin but entered common usage through different paths.