The story
Latin, literally "painful blue edema".
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An uncommon severe form of deep vein thrombosis resulting from extensive thrombotic occlusion (blockage by a blood clot) of the major and collateral veins of an extremity. It is characterized by sudden severe pain, swelling, cyanosis and edema. Full definition →
Latin, literally "painful blue edema".
Etymology from Wiktionary, CC BY-SA 4.0.