synaesthesia

The story

1. Ancient Greek · derived fromσύν“with”
2. English todaysynaesthesia

From Ancient Greek σύν (sún, “with”) + αἴσθησις (aísthēsis, “sensation”), modelled after anaesthesia. It is analysable as syn- + -aesthesia.

Words from the same roots

First known use, by meaning

• from late 19th c. A neurological or psychological phenomenon whereby a particular sensory stimulus triggers a second kind of sensation.