prolong

verbs

lengthen in time; cause to be or last longer

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

draw out, extend, prolong, protract

is derived from

is derived from

is derived from

lengthen or extend in duration or space

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

keep up, prolong, sustain

is derived from

is derived from