to perform the ceremony of (marriage).

to hold or perform (ceremonies, rites, etc.) in due manner.

to observe or commemorate with rites or ceremonies

to solemnize an occasion with prayer.

to go through with ceremony or formality.

to render solemn, serious, or grave; dignify.

to become solemn; conduct oneself with solemnity.

verb

commemorate , keep , observe , bless , celebrate , dignify , exalt , honor , mark , sanctify , venerate