means A naturally raised area of land, smaller and gentler than a mountain.

from From Old English 'hyll,' part of a deep Germanic family — a cousin of words in Dutch and Low German for rising ground — and traceable further back to a Proto-Indo-European root meaning 'to rise' or 'be prominent,' the same ancient impulse that gives us Latin 'collis' (hill) and 'celsus' (lofty). A small word for a small height, but with very old roots.