Marl /(?)/

1. To cover, as part of a rope, with marline, marking a pecular hitch at each turn to prevent unwinding. (Naut.)

1. A mixed earthy substance, consisting of carbonate of lime, clay, and sand, in very variable proportions, and accordingly designated as calcareous, clayey, or sandy. See Greensand.

imp. & p. p. Marled; p. pr. & vb. n. Marling

1. To overspread or manure with marl; as, to marl a field.