decimate /desˈi-māt/

1. To take or destroy the tenth part of
2. To punish by killing every tenth man
3. (loosely) to reduce very heavily

decimāˈtion noun

• exercitations
• exergaming
• exergies
• exergonic
• exergual
• exergue
• infantries
• infantry
• infantryman
• infantrymen
• infants
• infant school
• infant schools
• infarct
• infarction
• infarctions
• infarcts
• infare
• infares
• in fashion
• infatuate
• infatuated
• infatuates
• infatuating
• infatuation