Solemnize

The couple chose to solemnize their relationship in a secular ceremony, instead of having a wedding.

Source: wiktionary

He now is gone to pꝛooue Coſmography, / And as I gueſſe, wil firſt ariue at Rome, / To ſee the Pope, and manner of his court, / And take ſome part of holy Peters feaſt, / That to this day is highly ſolemnizd.

Source: wiktionary

Saint Luke declaring how Peter ſtood vp in the midſt of his Diſciples, did thereby deliuer an vnchangeable rule, that whatſoeuer is done in the Church ought to be done in the midſt of the church, and therefore not Baptiſme to be adminiſtred in one place, Mariage ſolemnized in an other, […]

Source: wiktionary

[…] Upon the heads of all who ſate beneath, / Lords, Ladies, Captains, Councellors, or Prieſts, / Thir choice nobility and flower, not only / Of this but each Philiſtian City round / Met from all parts to ſolemnize this Feaſt.

Source: wiktionary