atavism /atˈə-vi-zm/

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

atavistˈic adjective

atavistˈically adverb

• Massoretic
• masspriest
• masspriests
• mass-produce
• mass-produced
• mass producer
• mass producers
• mass-produces
• mass-producing
• mass production
• mass radiography
• mass spectrograph
• mass spectrographs
• mass spectrometer
• mass spectrometers
• mass spectrometry
• mass transit
• mass-transit
• massy
• massymore
• massymores
• massé
• massés
• mast
• MASTA