partitionment
/pɑːˈtɪʃnm(ə)nt/ /pəˈtɪʃnm(ə)nt/Now rare
noun
The action or an act of partitioning something, especially a country or territory; the fact of being partitioned; division into parts or shares; separation.
Origin
Mid 19th century (in an earlier sense). From partition + -ment.