Immoralize comes from immoral (from Latin in- 'not' + moralis, from mos 'custom') + the verb-forming suffix -ize. The etymological trail includes Latin moralis and Latin mos. As a verb, immoralize means to render immoral or corrupt the morals of. The same family is visible in derived forms such as immoralized and immoralizing and related forms such as immoral, moral, moralize, and morality. Morphologically, the word is built from the elements named in its history, so the modern form preserves a visible compound, prefix, or suffix structure.