Passuses is a 8 letter English word. It's valid Scrabble word worth 8 points. It's valid Words with friends word worth 10 points.
You can make 109 anagrams from letters in passuses (aepssssu).
1565-75; Medieval Latin, Latin: step. See pace1
Gressus is a product of going, but passus, of standing also, if the feet are at the same distance from each other as in walking.
This only extends to eleven passus, or less than half of the whole poem, as subsequently written.
The expression used, however, for fathoms is passus, presumably the Roman measure equal to 58.1 inches.
One of the "passus" is just twice the average length, and 30 lines longer than the one which comes next to it in size.