bog oak
material from oaks that have been buried in peat bogs and preserved from decay by the acidic and anaerobic bog conditions
en-US/ˈbɑɡ ˈoʊk/
en-GB/ˈbɒɡ ˈəʊk/
material from oaks that have been buried in peat bogs and preserved from decay by the acidic and anaerobic bog conditions