English
infrayellow
From infra- + yellow, based on infrared.
Proto-Indo-European *bʰer- ‘to bear, carry’
…
Proto-Italic *ferō ‘to carry, bear’
Latin ferō ‘to bear’
Latin īnferō ‘to carry, bring, put, place, or throw in,…’
Latin īnfrā ‘below’
English infra-
Proto-Indo-European *ǵʰelh₃- ‘green, yellow’
…
Proto-Germanic *gelwaz ‘yellow’
Proto-West Germanic *gelu ‘yellow’
Old English ġeolu ‘yellow’
Middle English yelwe
English yellow
Today it means
noun Electromagnetic radiation with longer wavelengths than yellow, including orange and red. Used by colorblind people, who can't see orange and red.
Language periods are conventional ranges, not dates for this word.
Etymograph / infrayellow