English

interpyramidal

From inter- + pyramidal.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Ancient Greek πυραμίς ‘pyramid’

Latin pȳramis ‘a pyramid’

Medieval Latin pȳramidālis

Middle English piramidal

Today it means

adj Between the carpal bones

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

Etymograph / interpyramidal