1 uni- mono- unity, uniform monotone, monopoly 2 bi-, bis- di-, dis- bicycle, bissextile dioxide, disulfide 3 ter-, tri- tri- tertiary, trivial tripod, richotomy 4 quadri- quadra- tetra- quadruped, quadruple tetrapod, tetrachord 5 quinque- -qui- penta quintet, quinquennial Pentecost, pentagon 6 sex-, sexa- hexa- sextant hexagone 7 septi-, -tem- hepta- September, septentrion heptarchy 8 octo-, octa
