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

• spits
• spitted
• spitten
• spitter
• spitters
• spitting
• spitting image
• spitting images
• spittings
• spittle
• spittlebug
• spittlebugs
• spittle-house
• spittle-houses
• spittle insect
• spittle insects
• spittles
• spittoon
• spittoons
• spit up
• spitz
• spitzes
• spiv
• spivs
• spivveries