syn- /sin-/, sy- /si-/, syl- /sil-/, sym- /sim-/ or sys- /sis-/

Signifying together, with

• Decapoda
• decapodal
• decapodan
• decapodous
• decapods
• decapsulate
• decapsulated
• decapsulates
• decapsulating
• decarb
• decarbed
• decarbing
• decarbonate
• decarbonation
• decarbonations
• decarbonisation
• decarbonise
• decarbonised
• decarbonises
• decarbonising
• decarbonization
• decarbonize
• decarbonized
• decarbonizes
• decarbonizing