how to merge two dataframe without changing the order : Have two df 

df1 

```
naming     bags        tags    tools
  1asd    a31656      132awd   1357w
  qefds   1387913     ada(&(*  13288


df2
tags        bags       naming   tools  cycle  reround  compile 
  nan       nan         nan      nan   nan     nan      nan
   

```


how to merge these two df  so that all the data is merged into df2 and column order of df2 is not changed