The Collaborative International Dictionary of English v.0.48:
Constipate \Con"sti*pate\, v. t. [imp. & p. p. Constipated; p.
pr. & vb. n. Constipating.] [L. constipatus, p. p. of
constipare; con- + stipare to crowd together. See Costive.]
1. To crowd or cram into a narrow compass; to press together
or condense. [Obs.]
Of cold the property is to condense and constipate.
2. To stop (a channel) by filling it, and preventing passage
through it; as, to constipate the capillary vessels.
3. (Med.) To render costive; to cause constipation in.