Many people, especially in previous generations, have names which contain a vernacular component (eg. Yiddish names et c.).
According to some shittot (see references to the Chattam Sofer here) one should not use a vernacular name as part of one's shem kodesh (the name by which one is called to the Torah).
According to these opinions, is one permitted/required to remove one's vernacular name, and does this require a formal process of some sort, or merely a cessation of the name's use?
My name is completely Hebrew, so this question is unable to apply to me personally.