Mammoth Uncensored Word List:
39 words ending with ze, 14 letters long

centrifugalize crossfertilize dechristianize despiritualize disillusionize hypercriticize hypersensitize hysterectomize misalphabetize monophthongize oophorectomize operationalize overcapitalize overcentralize overgeneralize overhomogenize overmonopolize overneutralize overspecialize photosensitize pinealectomize proletarianize radiosensitize respectabilize respiritualize sensationalize sentimentalize subminiaturize substantialize superficialize supersensitize territorialize testimonialize traditionalize transparentize unchristianize underemphasize unspiritualize utilitarianize