the.com/bushfire

means An uncontrolled fire burning through wild vegetation — bush, grass, or forest — fast-moving, fuel-hungry, and often started by lightning or human carelessness.

from A straightforward compound from English colonial Australia — 'bush' (the wild, uncultivated land, itself borrowed from Dutch 'bosch') plus 'fire.' The word simply named a fire that happens in the bush, but the land it described — vast, dry, eucalyptus-oiled and built to burn — gave the plain term its terrifying weight.