All the real work is done in the rehearsal period. —Donald Pleasence

 

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Rehearse:

Middle English rehersen, from Anglo-French rehercer, from re- + hercer to harrow, from herce harrow, frame for holding candles, from Latin hirpic-, hirpex harrow

 

a : to present an account of

b : to train or make proficient

c : to perform or practice

d : to recite aloud in a formal manner