E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
The Egyptian day - god, represented in hieroglyphics by a sparrow-hawk, which bird was sacred to him. He was son of Osiris and Isis, but his birth being premature he was weak in the lower limbs. As a child he is seen carried in his mothers arms, wearing the pschent or atf, and seated on a lotus-flower with his finger on his lips. As an adult he is represented hawk-headed. (Egyptian, har or hor, the day or suns path.) Strictly speaking, Horus is the rising sun, Ra the noonday sun, and Osiris the setting sun. (Whence Greek and Latin hora, and our hour.)