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English word complex comes from French com-, Latin com-, Latin plex-, Latin plicare, and later French complexe (Complex.)
com- (French)
com- (Latin)
plex- (Latin)
plicare (Latin)
complector (Latin)
I embrace or hug. I encircle. I include or involve. I seize or grasp.
complecti (Latin)
complexe (French)
Complex.
complex (English)
(geometry) A curve, polygon or other figure that crosses or intersects itself.. (mathematics) Of a number, of the form a + bi, where a and b are real numbers and i is a square root of −1.. Made up of multiple parts; composite; not simple.. Not simple, easy, or straightforward; complicated. (chemistry) A structure consisting of a central atom or molecule weakly connected to surrounding atoms [...]