
English word sphere comes from Ancient Greek (to 1453) σφαῖρα
σφαῖρα (Ancient Greek)
sphaera (Latin)
A ball for playing. A globe of the heavens. Ball, globe, sphere.
sphēra (Late Latin)
sphera (Late Latin)
sphere (Old French)
Sphere (shape).
sphere (English)
(transitive) To make round or spherical; to perfect.. (transitive) To place in a sphere, or among the spheres; to ensphere. (astronomy, now, _, rare) The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded. [from 14th c.]. (figuratively) The region in which something or someone is active; one's province, [...]