What is the meaning of Endo-?

Alternative form of end-

end-/endo-

endo-

end-/endo-

end-/endo-

end-/endo-

end-/endo-

end-, endo-

end-/endo-

endo-, end-

endo-

end-/endo-

end-/endo-

Source: wiktionary.org