sombrely

From sombre +‎ -ly.

sombrely

1. (British spelling) Alternative form of somberly
   • 2009 February 12, Clementine Cuneo, “'I'm no believer, but I owe someone'”, in Herald Sun‎^[1], archived from the original on 19 February 2009:

     But I feel I owe a thank you to someone," Ray Keating explains sombrely.

• Bromleys, Moberlys, somberly