In a serious, formal, and dignified manner.
solemn+ly
Shared component: solemn · serious
OpenEtymologyWORD FAMILY
solemn
serious
Related forms: solemn · 2 words in this dictionary
Related words
Shared components, not spelling prefixesto perform or celebrate (a ceremony, especially a wedding) with formal rites.
solemn+ize
Shared component: solemn · serious