The correct spelling of "de-adens" is "deaden." The primary stress falls on the second syllable, /ˈdɛdən/. The word means to make something less lively or active. The spelling is derived from the stem word "dead," which means lifeless or no longer alive. The "-en" suffix is added to the stem to form a verb, which means to bring something to a state of being dead-like or non-functional. The correct spelling of words is vital for effective communication in written and verbal form.