English

intraplate

From intra- + plate.

A compound of intra- + plate

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁énteros ‘inside, within’

Latin *interus

Latin intrā ‘within’

Proto-Indo-European *pleth₂- ‘flat’

…

Vulgar Latin *plattus ‘flat’

Medieval Latin plata

Old French plate ‘a flat metal disk’

Middle English plate

English plate

Today it means

adj Taking place within a single tectonic plate.

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

Etymograph / intraplate