|Origin:||sombre, probably from Latin sub 'under' + umbra 'shade, shadow'|
som‧bre British English ; somber American English
sad and serious [= grave]:
They sat in sombre silence.
We were all in a somber mood that night.
a sombre expression
on the sombre occasion of his mother's funeral
dark and without any bright colours:
a sombre grey suit
—sombreness noun [uncountable]