词根：coc, coct = to cook, to mature
同源词：
1. concoct（放在一起做饭、烹饪con<com(=together) + coct(=cook)）
vt.调制；调和；编造；图谋
concoction n.混合（物），调和（物）；编造
Policemen say that speeders often concoct hilarious excuses for speeding. 警察说超速驾驶的人往往会编造一些可笑的借口。
2. precocious（早一点成熟的pre (=before) + coc(=mature,cook)）
precocity n.早熟
She's a precocious tot. She could already read at 3.她是个早慧的孩子，三岁的时候就会识字读书了。
3. decoct
v.煎，熬 *de(=intensive,down)
decoction n.熬；煎制的药剂
词根词缀：coqu-, cocu-, coc-
【来源及含义】Latin: to cook, to prepare food, to ripen, to digest, to turn over in the mind
【相关词根词缀】Closely related to the coct- family of words.