flared

fe’l verb

1. To open outward in shape. The building flared from the third through the seventh floors to occupy the airspace over the entrance plaza. (intransitive)
2. To blaze brightly. The blast furnace flared in the night.
3. To shine out with a sudden and unsteady light; to emit a dazzling or painfully bright light. The candle flared in a sudden draught.
4. To cause to burn.