A modern gentleman has a friend whose father insists “short-lived” is pronounced with a long “i” sound. His argument revolves around the fact that it is the verb form of “live” that is pronounced with a short “i” sound. “Short-lived,” an adjective, should be pronounced like the adjective form of “live,” which employs a long “i.”
A modern gentleman never understood having such a firmly held belief about pronunciation until he came upon one of his own.
Iodine appears on the periodic table in the same family as fluorine, chlorine, bromine and astatine. Therefore, it should be pronounced “Eye-oh-deen,” to maintain phonetic consistency with elements with which it already has so much else in common.