These are mainly used in written and spoken form as abrieviations so you can ignore the full latin origin:
       
Id Est
That is / Namely i.e.
Exempli gratia
For example e.g.
Note bene
Note Well Nb.
Quad erat demonstrandum
It has been proved QED
Videlicet
That is to say / Namely Viz
Re
Concerning, regarding Re:
The exception is Etcetera which is spoken in full but written as an abbreviation:
Etcetera
And the rest is too long to mention! Etc.
 
   
 
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