Solemnize
SOL'EMNIZE, verb transitive
1. To dignify or honor by ceremonies; to celebrate; as, to solemnize the birth of Christ. Their choice nobility and flow'r met from all parts to solemnize this feast.
2. To perform with ritual ceremonies and respect, or according to legal forms; as, to solemnize a marriage.
3. To peform religiouly once a year.
4. To make grave, serious and reverential; as, to solemnize the mind for the duties of the sanctuary. [This use of the word is well authorized in the United States.]