ODE→radix

radix

EnglishOxford Dictionary of English

radix /ˈradɪks

▸ noun

(plural radices /ˈradɪsiːz

1 Mathematics the base of a system of numeration.

2 rare a source or origin of something:

Judaism is the radix of Christianity.

– ORIGIN mid 16th century (denoting the root of a plant): from Latin, literally ‘root’. radix (sense 1 of the noun) dates from the mid 18th century.