arch·fiend 
(ärch-fēnd)
(ärch-fēnd)n.
1. A principal fiend.
2. Archfiend The Devil; Satan. Used with the.
- supposedly
- supposing
- supposition
- suppositional
- suppositionally
- suppositious
- supposititious
- supposititiously
- suppositive
- suppositively
- suppository
- suppress
- suppressant
- suppressible
- suppression
- suppressive
- suppressor
- suppurate
- suppuration
- suppurative
- supra-
- supracellular
- supragenic
- supraglottal
- supraliminal