FRATERNIZE is validvalid

to treat incorrectly as a friend [v FRATERNIZED, FRATERNIZES, FRATERNIZING] : FRATERNIZATION [n], FRATERNIZER [n]

128,681 of 196,601 in NWL2023·also valid in CSW24

to associate or mingle as brothers or on fraternal terms, also FRATERNISE [v FRATERNIZED, FRATERNIZING, FRATERNIZES]