NUMER-

number

ARITHM-

number

SEMI-

half

BI-

twice

TRI-

three

QUADR-, QUART-

four, fourth (resp.)

QUINQU-, QUINT-

five, fifth (resp.)

SEX-

six

SEPT-

seven

OCT(O)-

eight

NOV(EM)-, NONA-

nine

DEC(EM)-

ten

CENT-

one hundred

POLY-

many, much

HEMI-

half

DU(O)-

two

TETR-

four

PENT-

five

HEX-

SIX-

HEPT-

seven

OCT-

eight

ENNEA-

nine

DEC-, DEK-

ten

DODEC-

twelve

ICOS-

twenty

HECAT-

hundred

BOLA-

that which is thrown

HEDR-

base

-GON-

angle