over-centralization
/ˌəʊvəsɛntrəlʌɪˈzeɪʃn/ /ˌəʊvəsɛntr(ə)lʌɪˈzeɪʃn/noun
Excessive centralization; especially the concentration of too much power or too many administrative functions in one place.
Origin
Late 19th century; earliest use found in Fraser's Magazine for Town and Country. From over- + centralization. Compare later over-centralize.