quoin /koin/

1. A salient angle, esp of a building
2. A cornerstone, esp a dressed cornerstone
3. A keystone
4. A voussoir (qv)
5. A wedge, esp for locking type in a chase, or for raising a gun

1. To wedge
2. To secure or raise by wedging

quoinˈing noun

• pericarpial
• pericarps
• pericentral
• pericentric
• perichaetia
• perichaetial
• perichaetium
• perichondria
• perichondrial
• perichondrium
• perichondriums
• perichoreses
• perichoresis
• perichylous
• periclase
• periclases
• Periclean
• periclinal
• pericline
• periclines
• periclitate
• periclitated
• periclitates
• periclitating
• pericon