Etymograph

English

geoheliocentrism

From geo- + helio- + -centrism.

Formed from geo- + helio- + -centrism

Proto-Hellenic *gaya

Ancient Greek γῆ ‘earth’

English geo-

Proto-Indo-European *sóh₂wl̥ ‘sun’

Proto-Hellenic *hāwélios ‘sun’

Ancient Greek ἥλιος ‘sun’

English helio-

Today it means

noun An early model of the solar system that put Earth at the centre, and had Sun and Moon orbiting the Earth with other planets revolving about the Sun.

Language periods are conventional ranges, not dates for this word.

Etymograph / geoheliocentrism