1.  invaginate(v = verb.contact) - sheathe; "The chrysalis is invaginated"
is one way to sheathe
Derived form noun invagination₁
Sample sentences: Something ----s something

2.  invaginate(v = verb.contact) introvert - fold inwards; "some organs can invaginate"
is one way to draw in, retract
Derived form noun invagination₂
Sample sentences: Something ----s

   To insert as in a sheath; to produce intussusception in.

   Sheathed. [1913 Webster]

invaginate, v.tr.
1 put in a sheath.
2 turn (a tube) inside out.

Derivative:
invagination n.

Etymology:
IN-(2) + L vagina sheath