coistrel or coistril /koisˈtril/

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

• fellating
• fellatio
• fellation
• fellatios
• felled
• feller
• fellers
• fellest
• fellies
• felling
• fell-lurking
• fellmonger
• fellmongers
• fellness
• fellnesses
• felloe
• felloes
• fellow
• fellow citizen
• fellow citizens
• fellow-commoner
• fellow-commoners
• fellow countryman
• fellow countrymen
• fellow creature