fervency

She, in the fervency of her gratitude, named the dog after the donor—a great compliment.

Often she exclaimed with solemn fervency, "The gift I hae is fae aboon, an' what He gies daurna be hidit."

Yes, we loved one another with much fervency while we lived on that island; and, for the matter of that, we love each other still.

The passing of the centuries has demonstrated the need of ever increasing fervency in the supplication Thy kingdom come!

The vigour and fervency of his preaching were unabated by length of years.