English

intergradient

From inter- + gradient.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Proto-Indo-European *gʰredʰ- ‘to walk, go’

Latin gradior ‘to step, to walk’

Latin gradiēns ‘stepping, walking’

Today it means

adj Between gradients

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

Etymograph / intergradient