yellow

nouns

yellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons

verbs

turn yellow
"The pages of the book began to yellow"
is a type of (narrower)
change color, often in an undesired manner
"The shirts discolored"

adjectives

of the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk
is derived from
changed to a yellowish color by age
"yellowed parchment"
typical of tabloids
"sensational journalistic reportage of the scandal"; "yellow press"
cowardly or treacherous
"the little yellow stain of treason"-M.W.Straight; "too yellow to stand and fight"
is similar to
lacking honor or integrity; deserving dishonor
"dishonorable in thought and deed"
affected by jaundice which causes yellowing of skin etc