[1875–80; acar(us) + -oid]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: cross-fertilization, fan-tan, hat trick, massage, pressure point-oid is a suffix meaning “resembling,” “like,” used in the formation of adjectives andnouns (and often implying an incomplete or imperfect resemblance to what is indicatedby the preceding element). Other words that use the affix -oid include: alkaloid, anthropoid, cardioid, ovoid, planetoid