invaginate /in-vajˈi-nāt/

1. To ensheath
2. To dent inwards, push or withdraw within, introvert

1. To be introverted
2. To form a hollow cavity by infolding

invagināˈtion noun

• orbital motorways
• orbital road
• orbital roads
• orbitals
• orbited
• orbiter
• orbiters
• orbities
• orbiting
• orbits
• orbity
• orbs
• orby
• orc
• orca
• Orcadian
• orcas
• orcein
• orceins
• orch.
• orchard
• orchard-grass
• orchard-house
• orchard-houses
• orcharding