Gia Tô

Etymology
, from. This form is a misspelling because it does not follow the sound conversion pattern (to which there are basically no exceptions), Middle Chinese y /j/ → Vietnamese , as applied to every other Sino-Vietnamese syllable such as 也|yæX → , 移|ye → , 遊|yuw → , 易|yek → , 羊|yang → , etc. Thiều Chửu's dictionary also notes that is more of a popular spelling than a correct one, and lists it as a secondary spelling along with . Nevertheless,  is more common than  and is even used in history textbooks published by. This is perhaps because the syllable is usually perceived as non-Sino-Vietnamese (it is homophonous with the native word meaning "skin"), its pronunciation is identical to that of gia in most modern accents, and gia is otherwise perceived as Sino-Vietnamese (in fact, it can only be found in given names and Sino-Vietnamese compounds such as, , Gia Định). Other words that suffer this kind of common misspelling include *, * , * , etc.