I come from the same area as the bithplace of william the conqueror and, to my surprise, as I was learning English, I realized that some words sounded the same

I come from the same area as the bithplace of william the conqueror and, to my surprise, as I was learning English, I realized that some words sounded the same as the local dialect my grandparents were speaking; such as 'pear' and 'chair', etc...