The story
Mortein was made its first appearance as an insecticidal powder in the 1870s by J. Hagemann, a German immigrant to Australia. It is believed that Hagemann himself came up with the name Mortein, with a little help from his French wife. The word "Mortein" is a combination of the French word "mort" (dead) and the German word "ein" (one).
Hagemann used crushed chrysanthemum flowers to produce a pyrethrum extract powder. In the 1920s a squeeze puffer was developed. Hagemann introduced a liquid version in 1928, combining this with kerosene and had a flit gun designed which allowed the insecticide to be sprayed into the air or onto the pests themselves.
From Wikipedia’s article on Mortein, shared under CC BY-SA 4.0.3
