Mid 17th century; earliest use found in Robert Baillie (1599–1662), Church of Scotland minister and author. From classical Latin propāgāt-, prōpāgāt-, past participial stem of propāgāre, prōpāgārepropagate + -trix, after propagator.
Definition of propagatrix in US English:
propagatrix
noun
A female propagator.
Origin
Mid 17th century; earliest use found in Robert Baillie (1599–1662), Church of Scotland minister and author. From classical Latin propāgāt-, prōpāgāt-, past participial stem of propāgāre, prōpāgāre propagate + -trix, after propagator.