What does "ere" mean in this line "And ere should wane the morning star," taken from Tartary written by Walter Mare. Thanks.
It just means "before." So he's saying that before it gets to be daylight he'll get dressed and put on his sword and have his seven zebras pull him in his chariot.
This word is only used in poetry or in other situations when one is trying to be/sound fancy and a bit old fashioned.
A couple other examples of this in poetry are Emily Dickinson's "We shun it ere it comes" and Lord Byron's "Maid of Athens, Ere We Part."
When reading poetry, you'll often also see the word e'er, which should not be confused with ere. E'er is a contraction for "ever."