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over-concentrate
over-concentrate v. 
/ˌəʊvəˈkɒnsɛntreɪt/,
Brit. /ˌəʊvəˈkɒnsntreɪt/
, /ˌəʊvəˈkɒnsntreɪt//ˌəʊvəˈkɒnsɛntreɪt/U.S. /ˌoʊvərˈkɑnsənˌtreɪt/
/ˌoʊvərˈkɑnsənˌtreɪt/ΚΠ
1874 Blackwood's Edinb. Mag. Sept. 279/1 If he finds himself peppered all over, his attention is not over-concentrated.
1990 R. Pethybridge One Step Backwards, Two Steps Forward iii. 114 Subsequent non-Russian scholars have tended to over-concentrate on the workings of Pomgol and its guberniia equivalents.
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