【医】 endogenous aneurysm; spontaneous aneurysm
inner; inside; within【医】 end-; endo-; ento-; in-; intra-
former; original【化】 ortho-【医】 arch-; arche-; ortho-; pro-; prot-; proto-
aneurism; aneurysm【医】 aneurysm; blood tumor; vascular tumors