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over-effort
over-effort n.
Brit. 
/ˌəʊvə(r)ˈɛfət/
, /ˌəʊvə(r)ˈɛfət/U.S. /ˌoʊvərˈɛfərt/
/ˌoʊvərˈɛfərt/ΚΠ
1850 Examiner 6 Apr. 213/1 Though some of the completest poetical images are contained in it,..it is not free from the appearance of over-effort.
1998 Re: Tendonitis in alt.sport.racquetball (Usenet newsgroup) 28 June Perhaps those who aspire to hit with the ultimate racquetball apparatus..but do not have sufficient capability..injure themselves through over-effort!
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