English
indolent lesion of epithelial origin
From indolent + lesion + epithelial.
A compound of indolent + lesion + epithelial
The story
Coined in 2015 by the research team of Laura J. Black, Mina Bissell, Howard Parnes, Sudhir Srivastava.
Today it means
noun a type of cancerous growth, which is malignant, but spreads slowly, and unlikely to be a serious issue within the lifetime of the victim
Language periods are conventional ranges, not dates for this word.
Etymograph / indolent lesion of epithelial origin