Synonyms and related words :
continualness, continuance, continuation, continuity, endurance, eternal re-creation, eternal return, eternalization, extension, immortalization, lengthening, maintenance, perseverance, persistence, preservation, progress, progression, prolongation, protraction, pursuance, repetition, run, staying power, steady-state universe, straight course, sustained action, sustenance, uninterrupted course, unremittingness, way