[f. CHUM + -SHIP.] The state or condition of being chums.
1835. De Quincey, in Tait’s Mag., II. 367. The practice of chumship prevailed [at Oxford in 17th c.]; every set of chambers was possessed by two co-occupants; they had generally the same bedroom, and a common study; and they were called chums.
1871. Echo, 27 Feb. I lost … various other little things, during my ‘chumship’ with the thief.
