atavism /atˈə-vi-zm/

1. The reappearance of ancestral, but not parental, characteristics
2. Reversion to an ancestral, or to a primitive, type

• control registers
• control rod
• control rods
• control room
• control rooms
• controls
• control stick
• control surface
• control surfaces
• control total
• control tower
• control towers
• control unit
• control units
• controul
• controverse
• controverses
• controversial
• controversialist
• controversially
• controversies
• controversy
• controvert
• controverted
• controvertible