Google Books shows that this verse and footnote appears in Irish University Review, Volume 5, (Shannon: Irish University Press, 1975), page 288:

'When dew falls on the meadow and moths fill the night,
When glow of the greesha* on hearth throws half light,
I'll slip from the casement and we'll run away
And it will not be long, love, to our wedding day.'

* griosach embers.