som·nif·er·ous 
(sŏm-nĭfər-əs) also som·nif·ic (-nĭfĭk)
(sŏm-nĭfər-əs) also som·nif·ic (-nĭfĭk)adj.
Inducing sleep; soporific.
som·nifer·ous·ly adv.
- straightedged
- straighten
- straightener
- straighten out
- straight face
- straight-faced
- circumscriptive
- circumsolar
- circumspect
- circumspection
- circumspectly
- circumstance
- circumstantial
- circumstantial evidence
- circumstantiality
- circumstantially
- circumstantiate
- circumstantiation
- circumstellar
- circumterrestrial
- circumvallate
- circumvallation
- circumvent
- circumventer
- circumvention