同文网《英语词缀词根大全》以中高考及四六级考试大纲要求掌握的词汇为主，通过拓展同义前缀、同义后缀和同义词根，共收录了905个前缀、后缀及例句和练习题，可帮助读者了解单词的构词规律，是一部小型但内容丰富、功能实用的精编语言工具书。
| dem(o) |
demn |
dens |
dent |
derm, dermat |
| derm, dermat |
dexter |
di |
dict, dic |
dict, dic |
| dign |
doc, doct |
doc, doct |
dole |
dom |
| don, dit |
don, dit |
dorm |
dox |
draw |
| drom |
du, dub, doub |
du, dub, doub |
du, dub, doub |
duc, duct |
| duc, duct |
dur |
dyn, dynam |
dyn, dynam |
ed |
| ego |
em, empt, ampl |
em, empt, ampl |
em, empt, ampl |
emper, imper |
| emper, imper |
equ, equi |
equ, equi |
erg, ert |
erg, ert |
| err |
ev |
lyr |
fabl, fabul |
fabl, fabul |
| fabr |
fac, fact, fect, fic, fig |
fac, fact, fect, fic, fig |
fac, fact, fect, fic, fig |
fac, fact, fect, fic, fig |
| fac, fact, fect, fic, fig |
fac, fic |
fac, fic |
fall, fail, fault |
fall, fail, fault |
| fall, fail, fault |
feder |
fend, fens |
fend, fens |
fer |