Rashi on Genesis 1:2/רש"י על בראשית א׳:ב׳

1תהו ובהו DESOLATE AND VOID — The word תהו signifies astonishment and amazement, for a person would have been astonished and amazed at its emptiness.

2תהו is estordison in old French.

3בהו VOID — The word signifies emptiness and empty space.

4על פני תהום ON THE FACE OF THE DEEP — i. e. the waters which were upon the earth.

5ורוח אלהים מרחפת AND THE SPIRIT OF GOD WAS HOVERING — The throne of Divine Glory was standing in space, hovering over the face of the waters by the breath of the mouth of the Holy One, blessed be He, and by His command, even as a dove hovers over its nest. In old French acoveter.