The spelling of the word sacrilegist can be explained through its phonetic transcription: /ˈsæk.rə.lɪ.dʒɪst/. The first syllable, "sacri", comes from the Latin term "sacrum," which means sacred. The next syllable, "leg", is derived from the Latin word "lex," meaning law or rule. Lastly, the suffix "-ist" means one who practices or believes in a certain principle. Therefore, a sacrilegist is someone who disrespects or violates sacred principles or laws. Despite the phonetic complexity, proper spelling of this word is important to convey its intended meaning accurately.
One guilty of sacrilege.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.