Ranks
From BiblePortal Wikipedia
Vine's Expository Dictionary of NT Words [1]
1: Πρασιά (Strong'S #4237 — Noun Feminine — prasia — pras-ee-ah' )
"a garden bed or plot" (probably from prason, "a leek"), is used metaphorically in Mark 6:40 of "ranks" of persons arranged in orderly groups.
International Standard Bible Encyclopedia [2]
raṇks ( πρασιά , prasiá , "a square plot of ground," "a garden-bed"): "They sat down in ranks" ( Mark 6:40 ); the several reclining ranks formed, as it were, separate plots or "garden-beds."