Marish

"I fled, 'tis true, and saved my life by flight, / bursting my bonds in frenzy of despair, / and hidden in a marish lay that night, / waiting till they should sail, if sail, perchance, they might."

Source: tatoeba (6813424)

Thenne sir Tristram departed / and in euery place he asked & demaunded after sir Launcelot / but in no place he coude not here of hym whether he were dede or on lyue /[…]/ Soo syr Tristram rode by a forest and then̄e was he ware of a fayre toure by a mareyse on that one syde / and on that other syde a fayr medowe

Source: wiktionary

The Cherubim descended; on the ground / Gliding meteorous, as evening-mist / Risen from a river o'er the marish glides, / And gathers ground fast at the labourer's heel / Homeward returning.

Source: wiktionary

And the silvery marish flowers that throng / The desolate creeks and pools among,

Source: wiktionary