The size of Polyphemus

Here was the plan that struck my mind as best . . .
the Cyclops’ great club: there it lay by the pens,
olivewood, full of sap. He’d lopped it off to brandish
once it dried. Looking it over, we judged it big enough
to be the mast of a pitch-black ship with her twenty oars,
a freighter broad in the beam that plows through miles of sea —
so long, so thick it bulked before our eyes.

The Odyssey, Book 9, Translated by Robert Fagles.