late 14c., "an order, request, directive," from Old French assignement "(legal) assignment (of dower, etc.)," from Late Latin assignamentum, noun of action from Latin assignare/adsignare "to allot, assign, award" (see assign). Meaning "appointment to office" is mid-15c.; that of "a task assigned (to someone), commission" is by 1848.
the first task is the assignment of an address to each datum
assify
assign
assignat
assignation
assignee
assignment
assimilable
assimilate
assimilation
assimilationist
assimilative