•Un-, uni- Unus, unius (one) UNANIMOUS
•Bi- Bis (twice) /Bini (in twos) BIANNUAL
•Du- Duo (two) DUAL
•Tri- Tres (three) TRIANGLE
•Terti- Tertius (third) TERTIAN
•Tern- Terni (three each) TERNARY
•Quadr-Quattuor (Four) QUADRANGLE
•Quart- Quartus (Fourth) QUARTILE
•Quatern- Quaterni (Four each) QUATERNARY
•Quadragesim- Quadragesimus (Fortieth) QUADRAGESIMAL
•Quadragen- Quadrageni (Forty each) QUADRAGENARY
•Quinque- Quinque (Five) QUINQUENNIUM
•Quint- Quintus (Fifth) QUINTILE
•Quin- Quini (Five each) QUINARY
•Sex-, Se- Sex (Six) SEXENNIUM, SEMESTER
•Sext- Sextus (Sixth) SEXTANT
•Sen- Seni (Six each) SENARY
•Sexagesim- Sexagesimus (Sixtieth) SEXAGESIMAL
•Sexagen- Sexageni (Sixty each) SEXAGENARY
•Sept- Septem (Seven) SEPTENNIUM
•Septim- Septimus (Seventh)
•Septuagint-, Septuagesim-, Septuagen- SEPTUAGINT, SEPTUAGENARIAN
•Oct- Octo (Eight) OCTANE
•Octav- Octavus (Eighth) OCTAVAL
•Octon- Octoni OCTONARY
•Octogesim-, Octogen-, -gesimus, -geni OCTOGENARY, OCTOGESIMAL
•Nov- Novem (Nine) NOVEMBER
•Non- Nonus (Ninth) NONARY
•Noven- Noveni (Nine each) NOVENARY
•Nonagesim-, Nonagen-, -gesimus, -geni NONAGESIMAL, NONAGENARY
•Den- Deni (Ten each) DENARIUS
•Decim-Decimus (Tenth/Tenth part) DECIMAL
•Undecim- Undecimus (Eleventh) UNDECIMAL
•Unden- Undeni (Eleven each) UNDENARY
•Tricesim- Tricesimus (Thirtieth)
•Trigesim- Tricesimus (Thirtieth) TRIGESIMAL
•Tricen-Triceni (Thirty each) TRICENARY
•Quindecim- Quindecimus (Fifteenth) QUINDECIMAL
•Quinden- Quindeni (Fifteen each) QUINDENARY
•Vicesim-, Vigesim- Vicesimus (Twentieth) VIGESIMAL
•Vicen- Viceni (Twenty each) VICENARY
•Cent- Centum (Hundred) CENTENARY
•Centesim- Centesimus (Hundredth) CENTESIMAL
•Centen- Centeni (Hundred each) CENTENARY
•Mill- Mille (Thousand) MILLENIUM
•Millen-Milleni (Thousand each) MILLENARY
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