English
intrapolar
From intra- + polar.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁énteros ‘inside, within’
Latin *interus
Latin intrā ‘within’
English intra-
Proto-Indo-European *kʷel-
…
Proto-Hellenic *pólos
Ancient Greek πόλος ‘pivot, hinge, axis, pole’
Latin polus ‘pole’
Late Latin polāris ‘of or pertaining to the poles’
English polar
Today it means
adj Between poles.
Language periods are conventional ranges, not dates for this word.
Etymograph / intrapolar