marl 
(märl)
(märl)n.
A crumbly mixture of clays, calcium and magnesium carbonates, and remnants of shells that is sometimes found under desert sands and used as fertilizer for lime-deficient soils.
tr.v. marled, marl·ing, marls
To fertilize with such a mixture.
[Middle English marle, from Old French, from Medieval Latin margila, marla, diminutive of Latin marga, marl, of Celtic origin.]
marly adj.
- Friedrich von Hardenberg.
- Friedrich Wilhelm
- Friedrich Wilhelm
- (Friedrich) Wilhelm
- Friedrich Wilhelm August
- Friedrich Wilhelm August
- Friedrich Wilhelm Joseph von
- Friedrich Wilhelm von
- Friel
- friend
- friendless
- friendlessness
- friendlily
- friendliness
- friendly
- friendly fire
- Friendly Islands
- friendship
- frier
- frier
- fries
- Friesian
- Friesian
- Friesland
- frieze