solemnize

UK: /ˈsɒləmˌnaɪz/ US: /ˈsɑləmˌnaɪz/ ,(sol′əm nīz′)

Inflections of 'solemnize' (v): (⇒ conjugate)

solemnizes

v 3rd person singular (US & UK)

solemnizing

v pres p (US & UK)

solemnized

v past (US & UK)

solemnized

v past p (US & UK)

WordReference Random House Learner's Dictionary of American English © 2025

sol•em•nize /ˈsɑləmˌnaɪz/   v. [~ + object] , -nized, -niz•ing. 

1. to observe with ceremony;
   make (something) solemn:
   to solemnize the holy day.
2. to perform the ceremony of (marriage).

WordReference Random House Unabridged Dictionary of American English © 2025

sol•em•nize  (sol′əm nīz′), v., -nized, -niz•ing. 
v.t. 

1. to perform the ceremony of (marriage).
2. to hold or perform (ceremonies, rites, etc.) in due manner.
3. to observe or commemorate with rites or ceremonies:
   to solemnize an occasion with prayer.
4. to go through with ceremony or formality.
5. to render solemn, serious, or grave;
   dignify.

v.i. 

6. to become solemn;
   conduct oneself with solemnity.

Also,[esp. Brit.,] sol′em•nise′. 

• Medieval Latin sōlemnizāre, equivalent. to Latin sōlemnis solemn + -izāre -ize
• Middle English solempnise 1350–1400

sol′em•ni•za′tion, n. 
sol′em•niz′er, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

solemnize, solemnise / ˈsɒləmˌnaɪz/ verb (transitive)

1. to celebrate or observe with rites or formal ceremonies, as a religious occasion
2. to celebrate or perform the ceremony of (marriage)
3. to make solemn or serious
4. to perform or hold (ceremonies, etc) in due manner

ˌsolemniˈzation, ˌsolemniˈsation noun

ˈsolemˌnizer, ˈsolemˌniser noun