Synonyms of prolonging

1 Syllable
pad, stall, hold, stretch
2 Syllables
lengthen, delay, protract
3 Syllables
increase, continue
4 Syllables
continuations, perpetuate, elongation, continuation, sedulity
5 Syllables
perseverance
6 Syllables
stick-to-itiveness, immovability
8 Syllables
indefatigability