[1865–70; uni- + septate]This word is first recorded in the period 1865–70. Other words that entered Englishat around the same time include: black belt, figure skating, goulash, steamroller, tick-tack-toeuni- is a combining form occurring in loanwords from Latin (universe), used, with the meaning “one,” in the formation of compound words (unicycle). Other words that use the affix uni- include: uniflow engine, uniform, unipolar, unipotential, unison