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

• Jansenism
• Jansenist
• jansky
• janskys
• jantee
• jantier
• janties
• jantiest
• janty
• January
• Januform
• Janus
• Janus-faced
• jap
• Jap
• Jap.
• japan
• Japan Current
• japan-earth
• Japanese
• Japanese beetle
• Japanese cedar
• Japanese garden
• Japanese knotweed
• Japanese lantern