cidaris /sidˈə-ris/

1. A Persian royal tiara
2. (with cap) a genus of sea urchins, mostly fossil

• skittled
• skittle-ground
• skittle-grounds
• skittle out
• skittles
• skittling
• skive
• skived
• skiver
• skivers
• skives
• skivie
• skivier
• skiviest
• skiving
• skivings
• skivvied
• skivvies
• skivvy
• skivvying
• skivy
• sklate
• sklent
• skliff
• skliffs