Hu
In
Egyptian mythology the creating word of the sun-god of Heliopolis,
personified in the same god.
With
Sia he forms a primeval pair, both
born from a drop of blood from the penis of Re,
and together the personify the insight and wisdom of the
sun-god.
They
also accompany him on his solar barque and help to bring
order in chaos.
When
the pharaoh became a lone star, his companion was Hu.
The
name of Hu in hieroglyphs: 
Source(s):
Encyclopedie van de Mythologie.
The
Encyclopedia Mythica