prolong

/prə-ˈlȯŋ/

Middle English, from Middle French prolonguer, from Late Latin prolongare, from Latin pro- forward + longus long

verb

  1. to lengthen in time : continue

  2. to lengthen in extent, scope, or range

extend lengthen prolong protract mean to draw out or add to so as to increase in length. extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, area, or range. prolong suggests chiefly increase in duration especially beyond usual limits.