Attested:  AI iter 15 Moriduno;  RC Moriduno;   TP Ridumo

Where:  AI’s mileages fit the Gittisham Roman fort at SY13259930 beside the river Otter.  The Hembury hill-fort at ST112031 or Sidmouth, on the coast, are much less likely locations.

Name origin:  About -dunum ‘fortified low hill’ see here.  It is often argued that *mor- was Celtic for ‘sea’, but the generality of ancient place names derived from PIE *mori- points to inland water – marshes and lakes.

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Last Edited: 27 April 2016