English
extrasynaptic
From extra- + synaptic.
A compound of extra- + synaptic
Proto-Indo-European *h₁éǵʰs ‘out’
Proto-Indo-European *h₁eǵʰsteros
Proto-Italic *eksteros
Latin exter ‘being on the outside’
Latin extrā ‘outside, except, beyond’
English extra-
Proto-Hellenic *áptō
Ancient Greek ἅπτω ‘to join’
Ancient Greek συνάπτω ‘to connect’
Ancient Greek συναπτικός ‘capable of adjusting’
New Latin synapticus
English synaptic
Today it means
adj Exterior to a synapse.
Language periods are conventional ranges, not dates for this word.
Etymograph / extrasynaptic