/koh ahrk"tayt, -tit/ , adj.
(of a pupa) having the body enclosed in a hardened shell or puparium.
[ 1375-1425 for sense "confined, restricted," 1810-20 for current sense; late ME coarctatus, var. of COARTATUS (ptp. of coartare to press together), equiv. to co- CO- + art ( us ) tight (see ARTICLE) + -atus -ATE 1 ]