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groundage

American  
[groun-dij] / ˈgraʊn dɪdʒ /

noun

British.
  1. a tax levied on ships that anchor in a port.


groundage British  
/ ˈɡraʊndɪdʒ /

noun

  1. a fee levied on a vessel entering a port or anchored off a shore

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of groundage

First recorded in 1400–50, groundage is from the late Middle English word grondage. See ground 1, -age