prolong
1. [ verb ] lengthen in time; cause to be or last longer
Synonyms: extend draw_out protract
Examples:

: "We prolonged our stay" "She extended her visit by another day" "The meeting was drawn out until midnight"

Related terms: lengthen spin temporize extend carry prolongation lengthiness extension
2. [ verb ] lengthen or extend in duration or space
Synonyms: sustain keep_up
Examples:

"We sustained the diplomatic negotiations as long as possible" "prolong the treatment of the patient" "keep up the good work"

Related terms: continue retain prolongation maintainer
Similar spelling:   prolonge
  prolonged
  proline
  prelone
  praline