livid

1615–25; < Latin līvidus black and blue, equivalent to līv( ēre) to be livid (akin to Welsh lliw color) + -idus -id⁴

Livid “bluish, dull blue, grayish-blue” ultimately comes from Latin līvidus “dull blue, grayish-blue, discolored by bruising” (equivalent to English black and blue ), also meaning “spiteful, malicious” (in Latin one is blue with jealousy, not green).
In the early 18th century, English livid somehow developed the further senses “pale, deathly pale,” as from cold or in death, with no connotation of blueness. Then in the first half of the 19th century, livid came to mean “pale with rage or fury,” which is confusing because an angry person’s face can just as well be described as “purple with rage” or “red with fury.” Livid finally acquired the simple meaning “enraged, furiously angry” in the late 19th century.
Līvidus comes from the same Proto-Indo-European root slī- (suffixed form slī-wo- ) “bluish” as appears in Old English slāh (English sloe, as in sloe gin fizz, a drink that has never gone away). Slī-wo- appears in Slavic (Serbo-Croatian) šljiva “plum” (from its color), from which the pale fruit brandy šljivovica “slivovitz” is distilled.