prolong

To extend in space or length.

To lengthen in time; to extend the duration of.

Complaining prolongs one’s pain.

The departure was not unduly prolonged. In the road Mr. Love and the driver favoured the company with a brief chanty running. “Got it?—No, I ain't, 'old on,—Got it? Got it?—No, 'old on sir.”

To put off to a distant time; to postpone.

The government shouldn't prolong deciding on this issue any further.

To become longer; lengthen.