English
gnathion
From gnath- + -ion.
Formed from gnath + ion
Proto-Indo-European *h₁ey- ‘to go’
Proto-Indo-European *h₁éyti ‘to go, to be going’
Proto-Hellenic *éimi ‘to go’
Ancient Greek εἶμι ‘I go’
Ancient Greek ἰόν ‘going’
English ion
Today it means
noun A craniometric point, being the lowest part of the middle line of the mandible.
Language periods are conventional ranges, not dates for this word.
Etymograph / gnathion