The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
Appendix I
Indo-European Roots
ENTRY:
de-
DEFINITION:
Demonstrative stem, base of prepositions and adverbs. 1. Form *d (possibly instrumental). a. (i)to, too, from Old English t, to; (ii)tsimmes, from Old High German zuo,ze, to; (iii)tattoo1, from Middle Dutch toe, to, shut. (i)–(iii) all from Germanic *t;b. Italic *d in compound *kwm-d (see kwo-). 2. Form *d (possibly instrumental), perhaps source of forms meaning “from, out of.” a.de-, from Latin d,d-, from; b.deteriorate, from Latin dterior, worse, from suffixed form *d-tero-;c. compound *d-bel-i- (see bel-); d. Celtic *d, from, in compound *eks-d-sedo- (see sed-). (Pokorny de- 181.)
(possibly instrumental). a. (i) to, too, from Old English t
m-d
(possibly instrumental), perhaps source of forms meaning “from, out of.” a. de-, from Latin d
, from, in compound *eks-d
