To place in a rank or row; to arrange soldiers or things in ranks.
Combination of prefix 'en-' with 'rank', from Old French 'ranc' (row or line). This was a military term meaning to organize troops into formation.
Medieval military language left us many 'en-' words that we've lost—'enrank' shows how English once had a whole vocabulary just for organizing soldiers into battle formations.
Complete word intelligence in one call. Free tier — 50 lookups/day.