YOU SAID:
こんにちは、私の古い友達
INTO JAPANESE
こんにちは、私の古い友達
BACK INTO ENGLISH
Hi, my old friend.
INTO JAPANESE
我が古き友人よ
BACK INTO ENGLISH
My old friend.
INTO JAPANESE
我が古き友人よ
BACK INTO ENGLISH
My old friend.
That didn't even make that much sense in English.