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。
| crat |
cre, creas |
cre, creas |
creed, cred |
creed, cred |
| crit, cris |
crit, cris |
cruc, crus |
cruc, crus |
cryo |
| crypt |
cub, cumb |
cub, cumb |
culp |
cult |
| cumber, cumbr |
cumber, cumbr |
cur |
cur, curr, curs, cour, cours |
cur, curr, curs, cour, cours |
| cur, curr, curs, cour, cours |
cur, curr, curs, cour, cours |
cur, curr, curs, cour, cours |
cuss |
custom |
| cyn |
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 |