English
ignorosphere
From ignore + -o- + -sphere.
Formed from ignore + -o- + -sphere
Proto-Indo-European *ǵneh₃- ‘to recognise’
Latin īgnōrō ‘to have no knowledge of’
French ignorer ‘to ignore’
English ignore
Today it means
noun A vaguely-defined near space region of Earth's atmosphere, consisting of the mesosphere and sometimes the stratosphere or lower thermosphere.
Language periods are conventional ranges, not dates for this word.
Etymograph / ignorosphere