prolongation


Concise Oxford English Dictionary © 2008 Oxford University Press:
prolong/prəˈlɒŋ/
verb
  • 1 extend the duration of.
  • 2 technical extend in spatial length.
– derivatives
prolongation noun,
prolonger noun.
– origin ME: from OFr. prolonguer, from late L. prolongare, from pro- ‘forward, onward’ + longus ‘long’.
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