(of blood) having a light-coloured layer at the upper part of a clot
buffy in American English
(ˈbʌfi)
adjective
buff-colored
Word origin
[buff1 + -y1]-y is a native English suffix of adjectives meaning “characterized by or inclined to”the substance or action of the word or stem to which the suffix is attached. Otherwords that use the affix -y include: dreamy, grouchy, juicy, rumbly