English

protosolar

From proto- + solar.

Proto-Indo-European *pér ‘through’

Proto-Indo-European *pró ‘forwards, before’

Proto-Hellenic *pró

Ancient Greek πρό ‘before’

Ancient Greek πρῶτος ‘first’

Proto-Indo-European *sóh₂wl̥ ‘sun’

Latin sōl ‘sun’

Latin sōlāris ‘of or pertaining to the sun’

Middle English solar

English solar

Today it means

adj Describing the conditions prior to the formation of the solar system, or describing the protostar that became the sun

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

Etymograph / protosolar