Meaning of DI- in English

DI-

di- 1

a prefix occurring in loanwords from Greek, where it meant "two," "twice," "double" ( diphthong ); on this model, freely used in the formation of compound words ( dicotyledon; dipolar ) and in chemical terms ( diatomic; disulfide ).

Also, dis- 2 . Cf. mono- .

[ ME dís twice, double, akin to dýo TWO. See BI-, TWI- ]

di- 2

var. of dis- 1 before b, d, l, m, n, r, s, v, and sometimes g and j: digest; divide.

di- 3

var. of dia- before a vowel: diorama.

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .