The story
Latin: coīre (“to assemble”, “to come together”, present active indicative form of coeō, “I assemble”, “I come together”) + licet (“it is permitted”) = “it is permitted [for a group] to assemble”.
Etymology from Wiktionary, CC BY-SA 4.0.
coire licet
Today it means: The requirement of a grant bestowing right of assembly and allowing the formation of a collegium under the Roman Empire. Full definition →