1) Make famous forever 2) Make immortal 3) Perpetuate 4) Prolong indefinitely 5) To immortalize 6) To make eternal 7) To make eternally famous 8) To make or render eternal 9) To prolong indefinitely Found on https://www.crosswordclues.com/clue/eternize
E·ter'nize transitive verb [ imperfect & past participle Eternized ; present participle & verbal noun Eterniziing .] [ Confer French éterniser .] 1. To make eternal or endless. « This other [ gift] served but to Found on http://www.encyclo.co.uk/webster/E/70