semi/ʹsemi/ noun (pl semis) informal

• dec.
• deca-
• decade
• decadence
• decadent
• decaf
• decaffeinate
• decagon
• decahedron
• decal
• decalcify
• decalcomania
• decalitre
• Decalogue
• decametre
• decamp
• decanal
• decane
• decani
• decant
• decanter
• decapitate
• decapod
• decarbonize
• decarboxylase