Is it ensure, insure, or assure?
rete re·te (rē'tē)
n. pl. re·ti·a (rē'tē-ə, rē'shə)
An anatomical mesh, network, or structure, as of veins, arteries, or nerves.
/Re'te/ (From Latin "net") A net or network; a plexus; particularly, a network of blood vessels or nerves, or a part resembling a network.
[How is it used in AI? What is a "rete procedure "?]