In cases like these we are dealing with a form of synalepha which,
if not true elision, approaches it closely. According to Benot, the
pronunciation is not quite _d'ópalo_, but "there is an attempt at
elision." In other words, the second vowel or diphthong, if dominant,
so predominates over the first that it is scarcely audible. Under this
case, too, there may arise stress-shift: