The correct spelling of the word "invirility" is actually "invirility," with a "y" rather than an "i." The word is pronounced /ɪnˈvɪrəlti/ according to the International Phonetic Alphabet. The prefix "in-" means "not" and "virility" refers to masculine strength or sexual potency. Therefore, "invirility" means the lack or absence of these qualities. Despite its unusual spelling, it is important to remember that words must be spelled correctly to avoid confusion and misinterpretation.