Ignescent is an adjective that means emitting sparks of fire.

The Latin word ignis (EEN yees) means fire. From this origin, we get our word of the day which has been a part of the English language since the early 19th century. It may be used in a literal sense to refer to sparks of a fire or in a metaphorical sense as a synonym of volatile. Here’s an example of the later:

It’s not like the mayor to make provocative speeches, but last Sunday