u/FortLoolz

Verity is a female given name. As a first name it derives from the Latin feminine noun veritas, meaning "truth".

It was adopted in England as a Puritan and Quaker virtue name, truthfulness being considered a desirable attribute, and following a new tradition of naming children after virtues instead of saints in order to avoid idolatry.

People have speculated since the reveal of Verity Pennyworth's name, what it could mean for the narrative.

Here is my suggestion.

Let's see the traditional marriage vows found in the Book of Common Prayer (2016 edition):

I, N., take thee, N., to my wedded (wife) (husband), to have and to hold from this day forward, for better for worse, for richer for poorer, in sickness and in health, to love and to cherish, till death do us part, according to God's holy ordinance; and thereto I plight thee my troth.

"Troth" here is the historical spelling of the word "truth".

The 1662 edition of the vows:
http://justus.anglican.org/resources/bcp/1662/marriage.pdf

Sources:

https://en.wiktionary.org/wiki/verity

https://en.wikipedia.org/wiki/Book_of_Common_Prayer#History

http://justus.anglican.org/resources/bcp/1662/baskerville.htm (BCP, 1662)

https://www.bcponline.org/PastoralOffices/an_order_for_marriage.html (BCP, 2016)

https://www.encyclopedia.com/religion/encyclopedias-almanacs-transcripts-and-maps/sarum-use