English

intervertex

From inter- + vertex.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *wert- ‘to turn, to rotate, spin’

Proto-Italic *wertō ‘to turn’

Latin vertō ‘to turn around, turn about’

Latin vertex ‘whirl, eddy’

Today it means

adj Between vertices.

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

Etymograph / intervertex