English
heliographic
From helio- + -graphic.
Formed from helio- + -graphic
Proto-Indo-European *sóh₂wl̥ ‘sun’
Proto-Hellenic *hāwélios ‘sun’
Ancient Greek ἥλιος ‘sun’
English helio-
Today it means
adj Of or pertaining to heliography; transmitted by heliograph
Language periods are conventional ranges, not dates for this word.
Etymograph / heliographic