The term for originating in the body is "endogenous." This refers to substances, processes, or conditions that arise from within an organism, as opposed to "exogenous," which indicates influences or factors coming from outside the body. Endogenous factors can include hormones, metabolites, and various biological processes.
The term that refers to originating within another is allogeneic. It is a medical term that is used in transplantation biology.
The term is "ideation."
Cardiogenic means forming from or originating in the heart.
Originating is a term that means where something begins. This is important for knowing a time line of events for example and when they began.
allogenic
autologous.
A ray is a line that has an originating point, but no end.
The meaning is keratosis.
Intrahepatic means within the liver.situated or occurring within or originating in the liver
Furfag is a derogatory term for furries, originating on 4chan if I'm not mistaken.
The term is "conceptual" which refers to something that exists in the mind or as an idea without a physical form.
Pejorative term to describe a gay man, originating from the West Indies. Ostensibly, a "butt boy"