. "Passus (Ancient Roman)"@en . "The passus (meaning pace, but understood as a double pace, i. e., measured from one foot hit the ground to where the same foot hit the ground again) was an ancient Roman unit of length or distance."@en . . . . "The passus (meaning pace, but understood as a double pace, i. e., measured from one foot hit the ground to where the same foot hit the ground again) was an ancient Roman unit of length or distance."@en . .