Etymograph

English

interradius

From inter- + radius.

Formed from inter- + radius

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

English inter-

Latin radius ‘ray’

English radius

Today it means

noun Any interradial part, but especially the radius of a coelenterate halfway between two perradii

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

Etymograph / interradius