The Egyptian connection is pure speculation for which no evidence has ever been found. On the other hand, the description in Job sounds like a giant ox.
There’s a good chance the comparison with a ceder is about the sound this giant tail would make when moved, like a mega-swish.
Creatures born from eggs don’t have navels – thus this is not a dinosaur, if “navel” is correct.
Interesting. The root of the verb has a meaning that covers pleasure, delight, desire . . . not sure how they’re getting either “moves” or “stiffens”.