From Longman Dictionary of Contemporary Englishoakenoak‧en /ˈəʊkən $ ˈoʊ-/ adjective [only before noun] literary ALTImade of oak an oaken chest
Examples from the Corpus
oaken• The ceiling had arched oaken beams.• By the central pole stood a great oaken chest, three feet high and as long as a man.• A couple of bullets split the heavy oaken door, before it shook under the onslaught of the enemy ram.• Horse brasses had been tacked along the length of the oaken lintel and gleamed in the firelight.• an oaken table