"Fluminous" is a word in ENGLISH

Of or pertaining to the river Amazon in South America, or to its valley.

Of or pertaining to a main channel (resembling an artery), as a river, canal, or railroad.

Of or pertaining to the ancient Celtiberia (a district in Spain lying between the Ebro and the Tagus) or its …

Pertaining to, or bordering on, the river Danube.

Of or pertaining to Hudson's Bay or to the Hudson River; as, the Hudsonian curlew.

Pertaining to, or near, the St. Lawrence River; as, the Laurentian hills.

Of or pertaining to the river Nile; as, the Nilotic crocodile.

Pertaining to the Pactolus, a river in ancient Lydia famous for its golden sands.

Of or pertaining to the river Rhine; as, Rhenish wine.

Of or pertaining to the bank of a river; as, riparian rights.

Of or pertaining to the river Styx; hence, hellish; infernal. See Styx.