coistrel or coistril /koisˈtril/

1. A groom (obsolete)
2. A knave (Shakespeare)

• protistologies
• protistologist
• protistologists
• protistology
• protists
• protium
• protiums
• proto-
• Proto
• protoactinium
• protoactiniums
• protoavis
• protoavises
• Protochordata
• protochordate
• protochordates
• protococcal
• Protococcales
• Protococcus
• protocol
• protocolic
• protocolise
• protocolist
• protocolists
• protocolize