Sentence:  My home is in the North of Palestine on the other side of Jordan, beyond the Sea of Galilee. My family has dwelt there from <WSD>time immemorial</WSD>; but they always loved this city, and have a legend that they dwelt occasionally within its walls, even in the days when Titus from that hill looked down upon the female. 
Meaning of the word marked with <WSD> tags:  That is beyond memory; ancient.