ER

1. Edwardus Rex (New Latin), King Edward
2. Elizabeth Regina (New Latin), Queen Elizabeth (EIIR Queen Elizabeth II)
3. Emergency room (N American)

• operoseness
• operosenesses
• operosities
• operosity
• ophi-
• ophicalcite
• ophicalcites
• ophicleide
• ophicleides
• Ophidia
• ophidian
• ophidians
• ophidiaria
• ophidiarium
• ophidiariums
• ophio-
• Ophioglossaceae
• Ophioglossum
• ophiolater
• ophiolaters
• ophiolatries
• ophiolatrous
• ophiolatry
• ophiolite
• ophiolites