1533, "of or pertaining to Gk. philosopher Plato
" (429 B.C.E.-c.347 B.C.E.). The name is Gk. Platon,
properly "broad-shouldered" (from platys
"broad;" see place
(n.)). His original name was Aristocles. The meaning "love (for one of the opposite sex) free of sensual desire" (1631), which the word usually carries nowadays, is a Renaissance notion; it is based on Plato's writings in "Symposium"
about the kind of interest Socrates took in young men, which originally had no reference to women.