Nor eight lines after that in the words 'day and night.' There is elision of y in the line,
That were an ignominy and shame beneath
This downfall.
But none a few lines lower down in
Sole reigning holds the tyranny of heaven.
When the y stands by itself, unaccented, immediately after an accented syllable, and precedes a vowel that is part of another unaccented syllable standing immediately before an accented one, Milton accepts the consequence, and does not attempt to give it the force of a distinct syllable. But Addison's vague notion that it was Milton's custom to cut off the final y when it precedes a vowel, and that for the sake of being uncommon, came of inaccurate observation. For the reasons just given, the y of the word glory runs into the succeeding syllable, and most assuredly is not cut off, when we read of
the excess
Of Glory obscured: as when the sun, new ris'n,
Looks through the horizontal misty air,
but the y in ' misty ' stands as a full syllable because the word air is accented. So again in
Death as oft accused
Of tardy execution, since denounc'd
The day of his offence.
The y of ' tardy' is a syllable because the vowel following it is accented; the y also of ' day' remains, because, although an unaccented vowel follows, it is itself part of an accented syllable.