periscope=بيريسكوب

periscope=بيريسكوب

ONLINE ETYMOLOGY DICTIONARY:

periscope (n.)

viewing apparatus on a submarine, 1899, formed in English from peri- "around" + -scope "instrument for viewing." Earlier (1865) a technical term in photography. Related: Periscopic.

peri-

word-forming element meaning "around, about, enclosing," from Gk. peri (prep.) "around, about, beyond," cognate with Skt. pari "around, about, through," L. per (see per).

-scope

word-forming element indicating "an instrument for seeing," from L.L. -scopium, from Gk. -skopion, from skopein "to look at, examine" (see scope (n.1)).