 Examples of these are words the "matua" and "bitis" which are the same with Kapampangan words that means older and foot/feet respectively.The word "banggi" (night) is another example of this as it is different from the usual Bikol word "gab-i" but closer to the word "bengi" of Kapampangan.There's no formal study about the relationship of the Central Luzon languages to Central Bikol but the latter has several words that are also found in the archaic form of Tagalog spoken in the Rizal and Quezon provinces that are believed to be the home of Central Luzon languages such as Kapampangan in Pampanga and southern Tarlac, and Sambalic languages in Zambales province.