verb (used with object), sol·em·nized, sol·em·niz·ing.
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.
verb (used without object), sol·em·nized, sol·em·niz·ing.
Also especially British, sol·em·nise.
Origin of solemnize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
to celebrate or observe with rites or formal ceremonies, as a religious occasion
to celebrate or perform the ceremony of (marriage)
to make solemn or serious
to perform or hold (ceremonies, etc) in due manner
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., "honor by ceremonies," from Old French solemnisier, from Medieval Latin solemnizare, from Latin solemnis (see solemn). Meaning "render solemn" is from 1726. Related: Solemnized; solemnizing.
Online Etymology Dictionary, © 2010 Douglas Harper