Meaning

adjective abnormally deficient in color as suggesting physical or emotional distress

adjective (of light) lacking in intensity or brightness; dim or feeble

adjective lacking in vitality or interest or effectiveness

originEtymology tree Latin palleō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin pallidus English pallid From Latin pallidus. Doublet of pale.

Etymology from Wiktionary, CC BY-SA 3.0