Nouns

(n)yellow, yellownessyellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons

Verbs

(v)yellowturn yellow“The pages of the book began to yellow”

Adjectives

(s)yellow, yellowish, xanthousof the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk
(s)yellow, yellowedchanged to a yellowish color by age“yellowed parchment”
(s)scandalmongering, sensationalistic, yellowtypical of tabloids“sensational journalistic reportage of the scandal”, “yellow press”
(s)yellowcowardly or treacherous“the little yellow stain of treason” (M.W.Straight), “too yellow to stand and fight”
(s)jaundiced, icteric, yellowaffected by jaundice which causes yellowing of skin etc