11 letters · 17 points in Scrabble
adjective resembling or containing or formed by the accumulation of sediment
adjective produced by the action of water
originEtymology tree English sediment Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusder. Middle English -arie English -ary English sedimentary From sediment + -ary.
Etymology from Wiktionary, CC BY-SA 3.0