popularized from 1977, short for android. It is attested in a science fiction story from 1952.
Entries linking to droid
"automaton resembling a human being in form and movement," 1837, in early use often in reference to automated chess players, from Modern Latin androides (itself attested as a Latin word in English from 1727), from Greek andro- "man" (from PIE root *ner- (2) "man") + -eides "form, shape" (see -oid). Greek androdes meant "like a man, manly;" compare also Greek andrias "image of a man, statue." Listed as "rare" in OED 1st edition (1879), popularized from c. 1950 by science fiction writers.