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exo-

outside, outer

Greek · exo (ἔξω)

exo- root meaning picture

Greek éxō means "outside". Exo- builds words about outer layers or outside sources: an exoskeleton is a skeleton outside the body, an exoplanet orbits another star, exotic means from outside, foreign.

Memory trick

EXO sounds like "EXit-O": exit to the outside.

Words from this root