English
geotropic
From geo- + -tropic.
Proto-Indo-European *trep- ‘to turn’
Ancient Greek τρέπω ‘turn’
Ancient Greek τροπή ‘turn; solstice’
Ancient Greek τροπικός ‘of a turn; of the solstice’
Late Latin tropicus ‘of or pertaining to the solstice’
English tropic
Today it means
adj Of or pertaining to geotropism.
Language periods are conventional ranges, not dates for this word.
Etymograph / geotropic