solemnise

Verb	1.	solemnise - observe or perform with dignity or gravity; "The King solemnized this day of morning" Synonyms: solemnize
	2.	solemnise - perform (the wedding ceremony) with proper ceremonies Synonyms: solemnize
	3.	solemnise - make solemn and grave; "This ceremony solemnized our hearts" Synonyms: solemnize

celebrate, celebration, keep, observe, solemnisation, solemnization, solemnize