-scope

CIDE DICTIONARY

-scope,  [Gr. skopo`s a watcher, spy. See Scope.].

 A combining form usually signifying an instrument for viewing (with the eye) or observing (in any way); as in microscope, telescope, altoscope, anemoscope.  [1913 Webster]

OXFORD DICTIONARY

-scope, comb. form forming nouns denoting:
1 a device looked at or through (kaleidoscope; telescope).
2 an instrument for observing or showing (gyroscope; oscilloscope).

Derivative

-scopic comb. form forming adjectives.

Etymology

from or after mod.L -scopium f. Gk skopeo look at