English
extrared
From extra- + red.
Proto-Indo-European *h₁éǵʰs ‘out’
Proto-Indo-European *h₁eǵʰsteros
Proto-Italic *eksteros
Latin exter ‘being on the outside’
Latin extrā ‘outside, except, beyond’
English extra-
Proto-Indo-European *h₁rewdʰ-
…
Proto-Germanic *raudaz
Proto-West Germanic *raud
Old English rēad
Middle English red ‘red’
English red
Today it means
adj infrared
Language periods are conventional ranges, not dates for this word.
Etymograph / extrared