아/어/여라
I saw that there are many koreans who add 라 to adjectives . such as : 예뻐라 - 귀여워라..
what is the meaning that 라 adds to the adjectives.?
and is it the same with the original ones ? ( 귀여워- 예뻐 )
thanks in advance.

Question

아/어/여라
I saw that there are many koreans who add 라 to adjectives . such as : 예뻐라 - 귀여워라.. 
what is the meaning that 라 adds to the adjectives.? 
and is it the same with the original ones ? ( 귀여워- 예뻐 ) 
thanks in advance.

Answer

아/어/여라 is an ending particle used with an adjective and expressing exclamation.

(정말) 예뻐라 means "how pretty!"
(정말) 귀여워라 means "how cute!"

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