firesetting

fire +‎ setting

firesetting (uncountable)

1. The setting of fires; arson.
   • 2012, Geoffrey L. Dickens, ‎Philip A. Sugarman, ‎Theresa A. Gannon, Firesetting and Mental Health: Theory, Research and Practice (page 84)

     Given the scope of the negative outcomes associated with juvenile firesetting, it is surprising that there is so little empirical study of this behaviour.

2. (mining, historical) The use of fire to soften or crack the working face of a lode, to facilitate excavation; later superseded by the use of explosives.

• setting fire