Solutions once known as has 5 entries with similar clues

• 4-letter words
• pesoCoin once known as the "piece of eight"
• iranCountry once known as Persia
• 6-letter words
• typhusDisease once known as 'jail fever'
• 8-letter words
• ethiopiaCountry once known as Abyssinia
• 9-letter words
• newcastleEnglish city once known for coal export