The story
- Medieval Latin · derived fromrete
- English todayrete mirabile
From Medieval Latin rete mirabile (literally “wonderful net”) (14th century).
First known use, by meaning
- from 15th c. A complex of blood vessels found in some vertebrates that preserves a gradient of a certain solute or particle, originally specifically the network of arterioles at the base of the brain in some ungulates and other mammals.
Etymology from Wiktionary, CC BY-SA 4.0.