BUFFY
Etymology
A pet form of Elizabeth (cf. Bethy), based on a child's unsuccessful attempts to pronounce the name. Popularized by the Buffy the Vampire Slayer franchise.
Proper noun
Buffy
A diminutive of the female given name Elizabeth.
Etymology
Adjective
buffy (comparative buffier, superlative buffiest)
Of a brownish yellow color.
Source: Wiktionary
Buff"y, a. (Med.)
Definition: Resembling, or characterized by, buff. Buffy coat, the
coagulated plasma of blood when the red corpuscles have so settled
out that the coagulum appears nearly colorless. This is common in
diseased conditions where the corpuscles run together more rapidly
and in denser masses than usual. Huxley.
Source: Webster’s Unabridged Dictionary 1913 Edition