coel- or coelo- (also N American cel- or celo-) /sēl- or sē-lō-/

Denoting a cavity, or hollow part

• upspoken
• upsprang
• upspring
• upspringing
• upsprings
• upsprung
• upstage
• upstaged
• upstages
• upstaging
• upstair
• upstairs
• upstand
• upstanding
• upstands
• upstare
• upstared
• upstares
• upstaring
• upstart
• upstarted
• upstarting
• upstarts
• upstate
• upstay