sardonyx /särˈdə-niks/

An onyx with bands of cornelian or sard

• orologist
• orologists
• orology
• oropesa
• oropesas
• oropharynx
• oropharynxes
• ororotund
• ororotundities
• ororotundity
• or otherwise
• orotund
• orotundities
• orotundity
• orphan
• orphanage
• orphanages
• orphan-asylum
• orphan-asylums
• orphan disease
• orphaned
• orphanhood
• orphanhoods
• orphaning
• orphanism