Basically, Polyphemus the cyclops greets Odysseus and his men in a fairly friendly manner, but that doesn't last. When he sees them in his cave, the first thing Polyphemus asks is who they are. He asks if they are traders or fugitives. But then he gets a lot scarier.
Omnibenevolent would mean universally good. (Good to all, same meaning)
In medias res
It literally translates into "In the middle of things"
because they were engaged in a war between themselves
he didn’t accomplish enough in his first presidential term
they demanded their independence from England before they should have
for their contribution to the offense of slavery
What the hell is a bread and butter letter?