Ge-mangian

According to the Old English Dictionary:

ge-mangian

p. ode; pp. od To traffic, trade; nĕgōtiāri :-- Ðæt he wiste hú mycel gehwilc gemangode ut scīret quantum quisque nĕgōtiātus esset, Lk. Bos. 19, 15. Hwæt forstent ǽnegum men, ðeáh he gemangige ðæt he ealne ðisne middangeard áge, gif he his sáule forspildeþ what profits it any man, though he trade so as to obtain all this world, if he destroy his soul? Past. 44, 10; Swt. 332, 9; Cot. MS. ge-mangian