1. To double the degree
   "she was doubly rewarded"
   - double, twice 
2. In a twofold manner
   "he was doubly wrong"
   - in two ways

See also: double

• silver-leaved nightshade
• silver-leaved poplar
• silver-scaled
• silver-tongued
• silver-white
• silverback
• silverbell tree
• silverberry
• silverbush
• silverfish
• silveriness
• silverish
• silverleaf nightshade
• silvern
• silverplate
• suspensor
• suspensory
• suspensory bandage
• suspicion
• suspicious
• suspiciously
• suspiciousness
• suspiration
• suspire
• Susquehanna