[1700–10; bi-1 + quadrate]This word is first recorded in the period 1700–10. Other words that entered Englishat around the same time include: camera, cozy, emphatic, hump, sliding scalebi- is a combining form meaning “twice,” “two,” used in the formation of compound words.Other words that use the affix bi- include: bilabial, bilingual, bimodal, bisect, bivalve