prolong

Từ điển Oxford Advanced Learner 8th

pro·long [prolong prolongs prolonged prolonging] BrE [prəˈlɒŋ] NAmE [prəˈlɔːŋ] NAmE [prəˈlɑːŋ] verb ~ sth
to make sth last longer
Syn: ↑extend
•The operation could prolong his life by two or three years.
•Don't prolong the agony (= of not knowing sth) — just tell us who won!
Verb forms:

Word Origin:
late Middle English: from Old French prolonguer, from late Latin prolongare, from pro- ‘forward, onward’ + longus ‘long’.

Example Bank:
•Might it be possible to prolong life indefinitely?
•We do not want to prolong the meeting unnecessarily.
•Don't prolong the agony — just tell us who won!
•to prolong your stay/visit/life/survival/agony/misery

• Từ đồng nghĩa / Synonyms:
  sustain, keep up, protract, extend, draw out