Late 19th century; earliest use found in Quarterly Journal of the Geological Society of London. From pseudo- + -morphose, after pseudomorphosis or French pseudomorphoser.
Definition of pseudomorphose in US English:
pseudomorphose
verbˌs(j)uːdə(ʊ)ˈmɔːfəʊz
Mineralogy
with objectPseudomorph.
Origin
Late 19th century; earliest use found in Quarterly Journal of the Geological Society of London. From pseudo- + -morphose, after pseudomorphosis or French pseudomorphoser.