monopolar

Etymology tree
Proto-Indo-European *mender.
Proto-Hellenic *mónwos
Ancient Greek μόνος (mónos)
Ancient Greek μονο- (mono-)der.
English mono-
Proto-Indo-European *kʷel-der.
Proto-Indo-European *kʷól-os
Proto-Hellenic *pólos
Ancient Greek πόλος (pólos)der.
Latin polus
Proto-Indo-European *h₂el-der.?
Proto-Italic *-ālis
Latin -ālis
Latin -āris
Late Latin polārislbor.
English polar
English monopolar
From mono- + polar.