digest  /?da?d?est/:

• to change food that you have just eaten into substances that your body can use; or to understand new information, especially when there is  a lot of it or it is difficult to understand.
• a short piece of writing that gives the most important facts from a book, report. （读者文摘  reader digest）

词根  ger gest 同源异形根。  to carry

belligerent  /b??l?d??r?nt/ : bell 战争，ger 运送，-ent 的，  从事战争的

• belligerent countries 交战国
• eager to be at war 好战的 a belligerent nation

suggest ： sug（-sub）在下面 gest 送， 从下面呈上to bring up for consideration

• 建议  暗示 introduce indirectly propose

gesture ：-ure 动作  an act carry information

• 手势 

gestation： -ation 表行为状况，the condition of carrying young inside the body

• 怀孕期

ingest： -in （into 入） to carry food into the body

• 咽入 吸收， swallow absorb

congest ： con（-com）=together 一起， to carry together

• 堆积，使拥挤 heap up， cause to be crowded 
• the street  are often congested on sundays.

from 《english roots and how to use them to decipher their derivatives》

digest 词根 gest