apoop

Thus she made as much leeway as headway, could get along very nearly as fast with the wind ahead as when it was apoop, and was particularly great in a calm; in consequence of which singular advantages she made out to accomplish her voyage in a very few months, and came to anchor at the mouth of the Hudson a little to the east of Gibbet Island.

Journeys Through Bookland, Vol. 8 Charles Herbert Sylvester