"Tarquinish" is a peculiar word that proves to be a challenge for many to spell. The correct spelling of this word is /tɑːkwɪnɪʃ/. It is made up of two syllables, with the stress on the first syllable. The word is derived from the name "Tarquin," which is Latin in origin. The suffix "-ish" is added to convey a sense of similarity or likeness. Despite its tricky spelling, "Tarquinish" is rarely used in daily conversation, but its roots remain prevalent in history and literature.