English

intersynaptic

From inter- + synaptic.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Hellenic *áptō

Ancient Greek ἅπτω ‘to join’

Ancient Greek συνάπτω ‘to connect’

Ancient Greek συναπτικός ‘capable of adjusting’

New Latin synapticus

Today it means

adj Between synapses

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

Etymograph / intersynaptic