    zenith refers to an imaginary point directly "above" a particular location, on the imaginary celestial sphere. "above" means in the vertical direction opposite to the apparent gravitational force at that location. the opposite direction, i.e. the direction in which gravity pulls, is toward the nadir. the zenith is the "highest" point on the celestial sphere (meaning it is the farthest up from the gravitational force). zenith is sometimes used as a given name, most commonly for males. its meaning, "highest point," evokes success and power. ==origin== the root of the word "zenith" in proto-indo-european was reconstructed as '*mei-' ("to change"). in latin we find 'meare' ("to pass"). with the prefix 'sÄ-' ("aside") it became 'sÄmeare' ("to branch off"). then the noun 'sÄmita' ("side-way") was formed. when the romans occupied syria, shortly before the time of christ, the resident arameans adopted the word 'sÄmita' as 'simta' ("side-way"). the romans left. as the arabians conquered the land in the seventh century they took the word 'simta' from the arameans as 'samt' ("side-path") and also coined astronomical expressions. the word "zenith" derives from the inaccurate reading of the arabic expression  (), meaning "direction of the head" or "path above the head", by medieval latin scribes in the middle ages (during the 14th century), possibly through old spanish. it was reduced to 'samt' ("direction") and miswritten as 'senit'/'cenit', as the "m" was misread as an "ni". through the old french 'cenith', 'zenith' first appeared in the 17th century.{{cite web|title=zenith|url=http://dictionary.reference.com/browse/zenith|publisher=dictionary.com|accessdate=march 21, 2
Astrological_house_systems Celestial_coordinate_system Technical_factors_of_astrology