culet /kūˈlit/

1. The flat back or base of a brilliant-cut gemstone
2. Armour protecting the hips and buttocks

• Father Christmases
• fathered
• father figure
• father figures
• fatherhood
• fatherhoods
• fathering
• father-in-law
• fatherland
• fatherlands
• father-lasher
• father-lashers
• fatherless
• fatherlessness
• fatherlessnesses
• fatherlike
• fatherliness
• fatherlinesses
• fatherly
• father of the chapel
• Father of the faithful
• fathers
• Father's Day
• fathership
• fatherships