English

syntectonic

From syn- + tectonic.

Ancient Greek σύν ‘with, in company with, together with’

English syn-

Proto-Indo-European *teḱ- ‘to make’

Ancient Greek τέκτων ‘carpenter, joiner, maker’

Ancient Greek τεκτονικός ‘pertaining to building’

Late Latin tectonicus

Today it means

adj Describing any process that accompanies a tectonic one

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

Etymograph / syntectonic