marish /ˈmaɹɪʃ/adjective 1noun 1forms 3 adjective1 •(literary, no longer used) Marshy; growing in bogs or marshes.And the silvery marish flowers that throng / The desolate creeks and pools among, — 1830 noun1 •(literary, no longer used) A marsh.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. — 1674 formsmarishes · more marish · most marish