"organic substance of the fat group," 1925, from French lipide, coined 1923 by G. Bertrand from Greek lipos "fat, grease" (see lipo-) + chemical suffix -ide.
Entries linking to lipid
lipo- 1
word-forming element meaning "fat" (n.), from Greek lipos "fat" (n.), from PIE root *leip- "to stick, adhere," also used to form words for "fat."
-ide
word-forming element used in chemistry to coin names for simple compounds of one element with another element or radical; originally abstracted from oxide, which was the first so classified, in which the -ide is from acide "acid."
The suffix is really -dus (-do-), the -i- repr. the orig. or supplied stem-vowel ; it occurs without the vowel in absurdus, absurd, blandus, bland, crudus, raw (crude), etc. [Century Dictionary]