hemispheric

The word 'hemispheric' is a modern scientific adjective built from classical components. Its core, 'hemisphere', entered English in the late 14th century from Latin 'hemisphaerium', which itself was borrowed from Greek 'hēmisphairion'. The Greek term is a direct compound of 'hēmi-' (half) and 'sphaira' (ball, globe). The suffix '-ic', of Greek and Latin origin, was later appended to form the adjective, shifting the meaning from the object itself to its qualities. Thus, the literal 'half-sphere' evolved to describe anything pertaining to or resembling one half of a spherical body, most commonly applied to the northern or southern halves of the earth or brain.